RHSA-2026:69296
Vulnerability from csaf_redhat - Published: 2026-09-21 12:19 - Updated: 2026-09-22 15:46Summary
Red Hat Security Advisory: Red Hat Data Grid 8.6.3 security update
Severity
Important
Notes
Topic: An update for Red Hat Data Grid 8 is now available.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat Data Grid is an in-memory, distributed, NoSQL datastore solution. It increases application response times and allows for dramatically improving performance while providing availability, reliability, and elastic scale.
Data Grid 8.6.3 replaces Data Grid 8.6.2 and includes bug fixes and enhancements. Find out more about Data Grid 8.6.3 in the Release Notes[3].
Security Fix(es):
* CVE-2026-68494 jackson-core: jackson-core: Denial of Service via incomplete fix in async JSON parser [jdg-8.6] (CVE-2026-68494)
* CVE-2026-56745 datagrid-8/datagrid-8: Netty: Denial of Service via memory exhaustion in SPDY-to-HTTP codec [jdg-8.6] (CVE-2026-56745)
* CVE-2026-62243 netty-handler: Netty: TLS hostname verification bypass via OpenSSL client path misconfiguration [jdg-8.6] (CVE-2026-62243)
* CVE-2026-73508 netty-codec-dns: Netty: Denial of Service via Memory Leak in DNS Record Decoder with Malformed Domain Names [jdg-8.6] (CVE-2026-73508)
* CVE-2026-49978 dompurify: DOMPurify: Cross-site scripting vulnerability allows code execution [jdg-8.6] (CVE-2026-49978)
* CVE-2026-76844 redhat-datagrid-maven-repository.zip: webpack-dev-middleware: Information Disclosure via Path Traversal [jdg-8.6] (CVE-2026-76844)
* CVE-2026-59901 netty-codec-compression: Netty: Infinite loop in netty-codec-compression (bzip2) [jdg-8.6] (CVE-2026-59901)
* CVE-2026-59899 netty-codec-http: Netty: Memory exhaustion in netty-codec-http (decompression bomb) [jdg-8.6] (CVE-2026-59899)
* CVE-2026-56820 netty-handler-ssl-ocsp: Netty: Certificate revocation bypass via OCSP response replay attack [jdg-8.6] (CVE-2026-56820)
* CVE-2026-56819 netty-codec-http2: Netty: Denial of Service via HTTP/2 DATA frame memory leak [jdg-8.6] (CVE-2026-56819)
* CVE-2026-56817 netty-codec-xml: Netty: Information disclosure via XML External Entity (XXE) vulnerability [jdg-8.6] (CVE-2026-56817)
* CVE-2026-56746 netty-codec-http: Netty: Security control bypass allows unauthorized requests via null origin header [jdg-8.6] (CVE-2026-56746)
* CVE-2026-55851 netty-codec-haproxy: Netty codec-haproxy: Denial of Service via crafted PROXY protocol v2 message [jdg-8.6] (CVE-2026-55851)
* CVE-2026-55831 netty-codec-http: Netty: Denial of Service via SPDY SETTINGS frame processing [jdg-8.6] (CVE-2026-55831)
* CVE-2026-55833 netty-codec-http: Netty: Denial of Service via SPDY header decompression amplification [jdg-8.6] (CVE-2026-55833)
* CVE-2026-44891 netty-codec-stomp: Netty: Denial of Service vulnerability in STOMP decoder [jdg-8.6] (CVE-2026-44891)
* CVE-2026-59296 micrometer-core: Micrometer: Line-protocol and log injection via unsanitized input allows metric and log spoofing [jdg-8.6] (CVE-2026-59296)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Netty, a network application framework, specifically within the StompSubframeDecoder component. This vulnerability allows a remote attacker to cause a denial of service (DoS) by sending a large number of small headers. The decoder fails to properly limit the total number or cumulative size of headers per frame, leading to excessive memory consumption and ultimately crashing the server.
7.5 (High)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Red Hat Data Grid 8.6.3
Red Hat / Red Hat JBoss Data Grid
|
cpe:/a:redhat:jboss_data_grid:8
|
— |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in DOMPurify, a tool designed to sanitize HTML, MathML, and SVG to prevent cross-site scripting (XSS) attacks. When performing in-place sanitization, DOMPurify could fail to properly process content within shadow DOM elements attached to a `<template>.content`. This oversight allows an attacker to embed malicious code, such as JavaScript, which could then execute when the sanitized template is used by an application, potentially leading to unauthorized actions or information disclosure.
8.1 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in Netty, a network application framework. A remote attacker, by sending a specially crafted SPDY/3.1 SETTINGS frame, could cause the SPDY SETTINGS decoder to create a large number of map entries. This excessive processing and memory allocation can lead to a denial of service (DoS) due to heap growth and increased CPU usage.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in Netty, a network application framework. A remote attacker could exploit a vulnerability in the SPDY header decoding process. By sending a specially crafted, small compressed header block, the attacker can cause it to expand significantly during decompression, leading to excessive CPU usage and memory allocation. This can result in a denial of service (DoS) due to resource exhaustion.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in Netty's codec-haproxy module. A remote attacker could exploit a vulnerability in the HAProxyMessageDecoder by sending a specially crafted PROXY protocol v2 message. This leads to unbounded buffer accumulation, causing a denial of service (DoS) due to memory exhaustion.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in Netty. A remote attacker can exploit a vulnerability in the `SpdyHttpDecoder` handler of Netty's SPDY-to-HTTP codec. When processing a client-initiated `SYN_STREAM` frame, the decoder fails to release allocated memory if the stream is reset or content limits are exceeded. This oversight leads to native memory exhaustion, which can result in a Denial of Service (DoS) for the affected system.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in Netty, a network application framework. A remote attacker can bypass security controls in the `CorsHandler` component by sending a specially crafted request with a null origin header. This bypasses the intended access restrictions, allowing unauthorized requests to reach the backend application. This could lead to a compromise of data integrity by allowing unauthorized actions.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in Netty, a network application framework. A remote attacker could exploit this vulnerability by sending specially crafted XML data containing a DOCTYPE declaration to a vulnerable XmlDecoder within the Netty channel pipeline. This can lead to an XML External Entity (XXE) vulnerability, potentially allowing the attacker to disclose sensitive information from the system.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in Netty, a network application framework. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted HTTP/2 DATA frames to applications that use Netty and have HTTP/2 content decompression enabled. This can lead to memory exhaustion, causing the application to crash and resulting in a Denial of Service (DoS). The issue occurs because the framework fails to release retained memory buffers when processing DATA frames for a stream whose decompressor has already been closed.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in Netty. The `OcspClient` component fails to validate that the Certificate ID in an Online Certificate Status Protocol (OCSP) response matches the requested Certificate ID. This vulnerability allows a remote attacker to bypass certificate revocation checks by presenting a legitimately signed OCSP response for an unrelated certificate issued by the same Certificate Authority, leading to a replay attack. This can result in the acceptance of revoked certificates, potentially compromising the integrity and confidentiality of communications.
7.4 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in Micrometer's StatsD and Logging meter registries. This vulnerability allows a remote attacker to inject line terminators into metric data, such as names or tag values, due to insufficient sanitization of untrusted input. Exploitation can lead to the spoofing of arbitrary metrics, including critical system or business metrics, and the injection of false log entries, potentially impacting monitoring and auditing systems.
5.9 (Medium)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Moderate
A flaw was found in the Netty netty-codec-http component. A remote attacker can send HTTP requests containing highly compressed data. The HTTP decoder in netty-codec-http fails to properly limit the decompression of this content, causing the system to consume excessive memory. This can lead to memory exhaustion and a denial of service (DoS), making the service unavailable to legitimate users.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in the netty-codec-compression component of Netty. This vulnerability, caused by a logic error in the bzip2 decoder, allows a remote attacker to send specially crafted bzip2-compressed data. Processing this malformed data can trigger an infinite loop, causing the decoder thread to consume excessive CPU resources. This leads to a denial of service (DoS), requiring manual intervention to restore service.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Moderate
A flaw was found in Netty (io.netty:netty-handler). When using the SslProvider.OPENSSL client path with a plain X509TrustManager and without Unsafe-based trust-manager wrapping (Java 25+), TLS hostname verification is disabled. This misconfiguration allows a man-in-the-middle attacker to present a fraudulent certificate for a different hostname, which is then accepted without proper validation. This could lead to sensitive information disclosure.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in jackson-core. A remote attacker can exploit an incomplete fix in the non-blocking JSON parser by streaming specially crafted JSON data in small chunks. This bypasses the intended number length constraint, causing the parser to accumulate excessive memory per connection. This uncontrolled memory growth can lead to a denial of service (DoS) by exhausting the Java Virtual Machine (JVM) heap.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in Netty, an asynchronous network application framework. When processing malformed domain names in DNS packets, the DNS record decoder fails to release allocated memory. This vulnerability allows an unauthenticated remote attacker to incrementally leak direct memory, eventually leading to a denial of service.
7.5 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
A flaw was found in webpack-dev-middleware. A remote attacker can exploit a path traversal vulnerability when the configured publicPath lacks a trailing slash. By sending a specially crafted request, the attacker can bypass a security guard, allowing the middleware to resolve files from one directory above the intended output path. This could lead to information disclosure if the middleware is configured to use the physical filesystem.
8.6 (High)
Affected products
Fixed
1 product, the same list as for
CVE-2026-44891
Threats
Impact
Important
References
124 references
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"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
},
{
"category": "workaround",
"details": "To reduce the risk of this denial of service, restrict network access to any services that expose a STOMP endpoint and use Netty\u0027s `StompSubframeDecoder`. Implement firewall rules or network access controls to permit connections only from trusted sources. This action limits the ability of untrusted remote clients to exploit the vulnerability.",
"product_ids": [
"Red Hat Data Grid 8.6.3"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "io.netty/netty-codec-stomp: Netty: Denial of Service vulnerability in STOMP decoder"
},
{
"cve": "CVE-2026-49978",
"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
},
"discovery_date": "2026-07-14T21:05:26.253019+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2500695"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in DOMPurify, a tool designed to sanitize HTML, MathML, and SVG to prevent cross-site scripting (XSS) attacks. When performing in-place sanitization, DOMPurify could fail to properly process content within shadow DOM elements attached to a `\u003ctemplate\u003e.content`. This oversight allows an attacker to embed malicious code, such as JavaScript, which could then execute when the sanitized template is used by an application, potentially leading to unauthorized actions or information disclosure.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "dompurify: DOMPurify: Cross-site scripting vulnerability allows code execution",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability in DOMPurify is rated as Important as it allows for cross-site scripting (XSS) attacks. When DOMPurify performs in-place sanitization, it may fail to properly process shadow DOM content within `\u003ctemplate\u003e.content`, enabling an attacker to embed and execute malicious JavaScript. This could lead to unauthorized actions or information disclosure in Red Hat products that utilize DOMPurify for sanitizing untrusted HTML, MathML, or SVG.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-49978"
},
{
"category": "external",
"summary": "RHBZ#2500695",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2500695"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-49978",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-49978"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-49978",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49978"
},
{
"category": "external",
"summary": "https://github.com/cure53/DOMPurify/commit/ca30f070c360df162a3e3848e80e6fd3c9e74bff",
"url": "https://github.com/cure53/DOMPurify/commit/ca30f070c360df162a3e3848e80e6fd3c9e74bff"
},
{
"category": "external",
"summary": "https://github.com/cure53/DOMPurify/releases/tag/3.4.7",
"url": "https://github.com/cure53/DOMPurify/releases/tag/3.4.7"
},
{
"category": "external",
"summary": "https://github.com/cure53/DOMPurify/security/advisories/GHSA-rp9w-3fw7-7cwq",
"url": "https://github.com/cure53/DOMPurify/security/advisories/GHSA-rp9w-3fw7-7cwq"
}
],
"release_date": "2026-07-14T20:02:46.263000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "dompurify: DOMPurify: Cross-site scripting vulnerability allows code execution"
},
{
"cve": "CVE-2026-55831",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-07-21T00:02:57.305291+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2503103"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Netty, a network application framework. A remote attacker, by sending a specially crafted SPDY/3.1 SETTINGS frame, could cause the SPDY SETTINGS decoder to create a large number of map entries. This excessive processing and memory allocation can lead to a denial of service (DoS) due to heap growth and increased CPU usage.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.netty/netty-codec-http: Netty: Denial of Service via SPDY SETTINGS frame processing",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service flaw in Netty\u0027s SPDY SETTINGS decoder, allowing a remote unauthenticated attacker to exhaust system resources. By sending a specially crafted SPDY/3.1 SETTINGS frame, an attacker can cause excessive memory allocation and CPU usage, leading to a denial of service. This vulnerability has a low attack complexity and requires no user interaction or privileges.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-55831"
},
{
"category": "external",
"summary": "RHBZ#2503103",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503103"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-55831",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-55831"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-55831",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55831"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b",
"url": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6",
"url": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/security/advisories/GHSA-6jqx-86gh-f27w",
"url": "https://github.com/netty/netty/security/advisories/GHSA-6jqx-86gh-f27w"
}
],
"release_date": "2026-07-20T23:00:31.859000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
"product_ids": [
"Red Hat Data Grid 8.6.3"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "io.netty/netty-codec-http: Netty: Denial of Service via SPDY SETTINGS frame processing"
},
{
"cve": "CVE-2026-55833",
"cwe": {
"id": "CWE-409",
"name": "Improper Handling of Highly Compressed Data (Data Amplification)"
},
"discovery_date": "2026-07-21T00:01:25.203265+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2503101"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Netty, a network application framework. A remote attacker could exploit a vulnerability in the SPDY header decoding process. By sending a specially crafted, small compressed header block, the attacker can cause it to expand significantly during decompression, leading to excessive CPU usage and memory allocation. This can result in a denial of service (DoS) due to resource exhaustion.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "netty: io.netty/netty-codec-http: Netty: Denial of Service via SPDY header decompression amplification",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service vulnerability in Netty\u0027s SPDY header decoding. A remote, unauthenticated attacker can send a small, compressed SPDY header block that, during decompression, expands significantly beyond configured limits. This leads to excessive CPU and memory consumption, potentially causing resource exhaustion and service unavailability in affected Red Hat products that utilize Netty with SPDY.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-55833"
},
{
"category": "external",
"summary": "RHBZ#2503101",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503101"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-55833",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-55833"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-55833",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55833"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b",
"url": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6",
"url": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/security/advisories/GHSA-mvh2-crg5-v77c",
"url": "https://github.com/netty/netty/security/advisories/GHSA-mvh2-crg5-v77c"
}
],
"release_date": "2026-07-20T23:18:07.893000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
"product_ids": [
"Red Hat Data Grid 8.6.3"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "netty: io.netty/netty-codec-http: Netty: Denial of Service via SPDY header decompression amplification"
},
{
"cve": "CVE-2026-55851",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-07-21T22:43:00.311516+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2505698"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Netty\u0027s codec-haproxy module. A remote attacker could exploit a vulnerability in the HAProxyMessageDecoder by sending a specially crafted PROXY protocol v2 message. This leads to unbounded buffer accumulation, causing a denial of service (DoS) due to memory exhaustion.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.netty/netty-codec-haproxy: Netty codec-haproxy: Denial of Service via crafted PROXY protocol v2 message",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial-of-service vulnerability in the Netty `codec-haproxy` module. A remote attacker can send a specially crafted PROXY protocol v2 message, causing unbounded memory accumulation and exhausting direct memory, leading to service unavailability. This impact is significant for applications that process PROXY protocol v2 messages using the affected Netty component.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-55851"
},
{
"category": "external",
"summary": "RHBZ#2505698",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2505698"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-55851",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-55851"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-55851",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55851"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b",
"url": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6",
"url": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/security/advisories/GHSA-q6cq-mhr2-jmr5",
"url": "https://github.com/netty/netty/security/advisories/GHSA-q6cq-mhr2-jmr5"
}
],
"release_date": "2026-07-21T21:22:34.879000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "io.netty/netty-codec-haproxy: Netty codec-haproxy: Denial of Service via crafted PROXY protocol v2 message"
},
{
"cve": "CVE-2026-56745",
"cwe": {
"id": "CWE-772",
"name": "Missing Release of Resource after Effective Lifetime"
},
"discovery_date": "2026-07-21T22:52:47.296001+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2505911"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Netty. A remote attacker can exploit a vulnerability in the `SpdyHttpDecoder` handler of Netty\u0027s SPDY-to-HTTP codec. When processing a client-initiated `SYN_STREAM` frame, the decoder fails to release allocated memory if the stream is reset or content limits are exceeded. This oversight leads to native memory exhaustion, which can result in a Denial of Service (DoS) for the affected system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "netty: io.netty/netty-codec-http: Netty: Denial of Service via memory exhaustion in SPDY-to-HTTP codec",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service vulnerability in Netty\u0027s SPDY-to-HTTP codec, affecting Red Hat products that utilize vulnerable versions of Netty. A remote, unauthenticated attacker can exploit a memory leak in the `SpdyHttpDecoder` by sending specially crafted `SYN_STREAM` frames, leading to native memory exhaustion and a denial of service for the affected system.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-56745"
},
{
"category": "external",
"summary": "RHBZ#2505911",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2505911"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-56745",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56745"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56745",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56745"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b",
"url": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6",
"url": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/security/advisories/GHSA-jppx-w49h-x2qq",
"url": "https://github.com/netty/netty/security/advisories/GHSA-jppx-w49h-x2qq"
}
],
"release_date": "2026-07-21T21:31:25.307000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "netty: io.netty/netty-codec-http: Netty: Denial of Service via memory exhaustion in SPDY-to-HTTP codec"
},
{
"cve": "CVE-2026-56746",
"cwe": {
"id": "CWE-807",
"name": "Reliance on Untrusted Inputs in a Security Decision"
},
"discovery_date": "2026-07-21T22:30:30.983812+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2505422"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Netty, a network application framework. A remote attacker can bypass security controls in the `CorsHandler` component by sending a specially crafted request with a null origin header. This bypasses the intended access restrictions, allowing unauthorized requests to reach the backend application. This could lead to a compromise of data integrity by allowing unauthorized actions.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.netty/netty-codec-http: Netty: Security control bypass allows unauthorized requests via null origin header",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat ships Netty\u0027s netty-codec-http component in multiple products. The CorsHandler shortCircuit() feature, when enabled, is intended to reject unauthorized cross-origin requests before they reach the application. Due to a logical operator error in origin validation, requests with a null Origin header bypass this protection entirely. Upgrade to Netty 4.1.136.Final or 4.2.16.Final to resolve this issue.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-56746"
},
{
"category": "external",
"summary": "RHBZ#2505422",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2505422"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-56746",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56746"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56746",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56746"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/security/advisories/GHSA-6cqp-g7gg-8hr5",
"url": "https://github.com/netty/netty/security/advisories/GHSA-6cqp-g7gg-8hr5"
}
],
"release_date": "2026-07-21T21:36:18.627000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
},
{
"category": "workaround",
"details": "If CORS short-circuit functionality is not required, disable the shortCircuit() configuration in the CorsHandler. Alternatively, implement application-level origin validation to reject requests with null Origin headers. A web application firewall (WAF) can also be configured to block requests with null or missing Origin headers.",
"product_ids": [
"Red Hat Data Grid 8.6.3"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "io.netty/netty-codec-http: Netty: Security control bypass allows unauthorized requests via null origin header"
},
{
"cve": "CVE-2026-56817",
"cwe": {
"id": "CWE-611",
"name": "Improper Restriction of XML External Entity Reference"
},
"discovery_date": "2026-07-21T23:03:06.114927+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2505975"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Netty, a network application framework. A remote attacker could exploit this vulnerability by sending specially crafted XML data containing a DOCTYPE declaration to a vulnerable XmlDecoder within the Netty channel pipeline. This can lead to an XML External Entity (XXE) vulnerability, potentially allowing the attacker to disclose sensitive information from the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.netty/netty-codec-xml: Netty: Information disclosure via XML External Entity (XXE) vulnerability",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This Important flaw in Netty\u0027s `XmlDecoder` component allows for XML External Entity (XXE) injection. When a Netty channel pipeline processes XML data with a `DOCTYPE` declaration via an `AsyncXMLInputFactory` that lacks proper security configuration, a remote attacker could potentially disclose sensitive information. The exploitability is conditional, relying on the specific behavior of the Aalto XML async parser.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-56817"
},
{
"category": "external",
"summary": "RHBZ#2505975",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2505975"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-56817",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56817"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56817",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56817"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b",
"url": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6",
"url": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/security/advisories/GHSA-4qhr-g3c6-fcfx",
"url": "https://github.com/netty/netty/security/advisories/GHSA-4qhr-g3c6-fcfx"
}
],
"release_date": "2026-07-21T22:06:56.481000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
"product_ids": [
"Red Hat Data Grid 8.6.3"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "io.netty/netty-codec-xml: Netty: Information disclosure via XML External Entity (XXE) vulnerability"
},
{
"cve": "CVE-2026-56819",
"cwe": {
"id": "CWE-911",
"name": "Improper Update of Reference Count"
},
"discovery_date": "2026-07-21T23:03:36.448652+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2505980"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Netty, a network application framework. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted HTTP/2 DATA frames to applications that use Netty and have HTTP/2 content decompression enabled. This can lead to memory exhaustion, causing the application to crash and resulting in a Denial of Service (DoS). The issue occurs because the framework fails to release retained memory buffers when processing DATA frames for a stream whose decompressor has already been closed.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.netty/netty-codec-http2: Netty: Denial of Service via HTTP/2 DATA frame memory leak",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important vulnerability in Netty\u0027s HTTP/2 codec, which could lead to a denial of service. Red Hat products utilizing netty-codec-http2 with HTTP/2 content decompression enabled are susceptible to memory exhaustion when processing specially crafted HTTP/2 DATA frames. This allows a remote attacker to leak memory buffers, eventually exhausting available memory and impacting system availability.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-56819"
},
{
"category": "external",
"summary": "RHBZ#2505980",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2505980"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-56819",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56819"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56819",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56819"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003bhttps://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
"url": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003bhttps://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6",
"url": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/security/advisories/GHSA-93wv-jw9v-4972",
"url": "https://github.com/netty/netty/security/advisories/GHSA-93wv-jw9v-4972"
}
],
"release_date": "2026-07-21T22:11:17.470000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
"product_ids": [
"Red Hat Data Grid 8.6.3"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "io.netty/netty-codec-http2: Netty: Denial of Service via HTTP/2 DATA frame memory leak"
},
{
"cve": "CVE-2026-56820",
"cwe": {
"id": "CWE-295",
"name": "Improper Certificate Validation"
},
"discovery_date": "2026-07-21T23:03:50.732777+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2505982"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Netty. The `OcspClient` component fails to validate that the Certificate ID in an Online Certificate Status Protocol (OCSP) response matches the requested Certificate ID. This vulnerability allows a remote attacker to bypass certificate revocation checks by presenting a legitimately signed OCSP response for an unrelated certificate issued by the same Certificate Authority, leading to a replay attack. This can result in the acceptance of revoked certificates, potentially compromising the integrity and confidentiality of communications.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.netty/netty-handler-ssl-ocsp: Netty: Certificate revocation bypass via OCSP response replay attack",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important flaw in Netty\u0027s `OcspClient` that could allow a remote attacker to bypass certificate revocation checks. By replaying a valid OCSP response for an unrelated certificate from the same Certificate Authority, an attacker could trick a client into accepting a revoked certificate, thereby compromising the integrity and confidentiality of communications. Exploitation requires high attack complexity, indicating specific conditions or attacker preparation.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-56820"
},
{
"category": "external",
"summary": "RHBZ#2505982",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2505982"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-56820",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56820"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56820",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56820"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b",
"url": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6",
"url": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/security/advisories/GHSA-272m-gcwp-mpwg",
"url": "https://github.com/netty/netty/security/advisories/GHSA-272m-gcwp-mpwg"
}
],
"release_date": "2026-07-21T22:26:16.588000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
"product_ids": [
"Red Hat Data Grid 8.6.3"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "io.netty/netty-handler-ssl-ocsp: Netty: Certificate revocation bypass via OCSP response replay attack"
},
{
"cve": "CVE-2026-59296",
"cwe": {
"id": "CWE-93",
"name": "Improper Neutralization of CRLF Sequences (\u0027CRLF Injection\u0027)"
},
"discovery_date": "2026-08-21T10:50:55.231408+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2520949"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Micrometer\u0027s StatsD and Logging meter registries. This vulnerability allows a remote attacker to inject line terminators into metric data, such as names or tag values, due to insufficient sanitization of untrusted input. Exploitation can lead to the spoofing of arbitrary metrics, including critical system or business metrics, and the injection of false log entries, potentially impacting monitoring and auditing systems.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.micrometer/micrometer-registry-statsd: io.micrometer/micrometer-core: Micrometer: Line-protocol and log injection via unsanitized input allows metric and log spoofing",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-59296"
},
{
"category": "external",
"summary": "RHBZ#2520949",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2520949"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-59296",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-59296"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-59296",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59296"
},
{
"category": "external",
"summary": "https://spring.io/security/cve-2026-59296",
"url": "https://spring.io/security/cve-2026-59296"
}
],
"release_date": "2026-08-21T10:47:25.384000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "io.micrometer/micrometer-registry-statsd: io.micrometer/micrometer-core: Micrometer: Line-protocol and log injection via unsanitized input allows metric and log spoofing"
},
{
"cve": "CVE-2026-59899",
"cwe": {
"id": "CWE-409",
"name": "Improper Handling of Highly Compressed Data (Data Amplification)"
},
"discovery_date": "2026-07-09T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2507482"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Netty netty-codec-http component. A remote attacker can send HTTP requests containing highly compressed data. The HTTP decoder in netty-codec-http fails to properly limit the decompression of this content, causing the system to consume excessive memory. This can lead to memory exhaustion and a denial of service (DoS), making the service unavailable to legitimate users.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.netty/netty-codec-http: Netty: Memory exhaustion in netty-codec-http (decompression bomb)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important vulnerability in Netty\u0027s HTTP decoder, which could lead to a denial of service. Red Hat products utilizing `netty-codec-http` are susceptible to memory exhaustion when processing specially crafted, highly compressed HTTP payloads. This allows a remote attacker to trigger excessive memory allocation, impacting system availability.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-59899"
},
{
"category": "external",
"summary": "RHBZ#2507482",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507482"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-59899",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-59899"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-59899",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59899"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/security/advisories/GHSA-q4f6-jm68-57ww",
"url": "https://github.com/netty/netty/security/advisories/GHSA-q4f6-jm68-57ww"
},
{
"category": "external",
"summary": "https://netty.io/news/2026/07/09/4-1-136-Final.html",
"url": "https://netty.io/news/2026/07/09/4-1-136-Final.html"
}
],
"release_date": "2026-07-09T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
"product_ids": [
"Red Hat Data Grid 8.6.3"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "io.netty/netty-codec-http: Netty: Memory exhaustion in netty-codec-http (decompression bomb)"
},
{
"cve": "CVE-2026-59901",
"cwe": {
"id": "CWE-835",
"name": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)"
},
"discovery_date": "2026-07-09T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2507481"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the netty-codec-compression component of Netty. This vulnerability, caused by a logic error in the bzip2 decoder, allows a remote attacker to send specially crafted bzip2-compressed data. Processing this malformed data can trigger an infinite loop, causing the decoder thread to consume excessive CPU resources. This leads to a denial of service (DoS), requiring manual intervention to restore service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.netty/netty-codec-compression: Netty: Infinite loop in netty-codec-compression (bzip2)",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-59901"
},
{
"category": "external",
"summary": "RHBZ#2507481",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507481"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-59901",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-59901"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-59901",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59901"
}
],
"release_date": "2026-07-09T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "io.netty/netty-codec-compression: Netty: Infinite loop in netty-codec-compression (bzip2)"
},
{
"cve": "CVE-2026-62243",
"cwe": {
"id": "CWE-295",
"name": "Improper Certificate Validation"
},
"discovery_date": "2026-08-22T12:51:41.376413+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2521309"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Netty (io.netty:netty-handler). When using the SslProvider.OPENSSL client path with a plain X509TrustManager and without Unsafe-based trust-manager wrapping (Java 25+), TLS hostname verification is disabled. This misconfiguration allows a man-in-the-middle attacker to present a fraudulent certificate for a different hostname, which is then accepted without proper validation. This could lead to sensitive information disclosure.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.netty/netty-handler: Netty: TLS hostname verification bypass via OpenSSL client path misconfiguration",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat products ship io.netty:netty-handler as a transitive dependency across multiple middleware and platform products. While the CVSS score reflects the severity of a successful exploit \u2014 full confidentiality compromise of TLS-protected traffic without authentication \u2014 the vulnerable code path requires three conditions simultaneously: explicit OpenSSL provider configuration, a plain X509TrustManager, and a Java 25+ runtime. Most Red Hat product deployments use the default JDK SSL provider and currently run on Java 21 LTS, making the vulnerable configuration uncommon in practice.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-62243"
},
{
"category": "external",
"summary": "RHBZ#2521309",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521309"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-62243",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-62243"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-62243",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62243"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/security/advisories/GHSA-p85m-gvr3-788c",
"url": "https://github.com/netty/netty/security/advisories/GHSA-p85m-gvr3-788c"
},
{
"category": "external",
"summary": "https://www.vulncheck.com/advisories/netty-through-tls-hostname-verification-bypass",
"url": "https://www.vulncheck.com/advisories/netty-through-tls-hostname-verification-bypass"
}
],
"release_date": "2026-08-22T12:26:43.072000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
},
{
"category": "workaround",
"details": "This vulnerability only affects applications that explicitly configure Netty to use the OpenSSL TLS provider (SslProvider.OPENSSL). \n\nThe following mitigations can reduce exposure without applying a patch:\n\n1) Use the default JDK SSL provider \u2014 Do not configure SslProvider.OPENSSL in your Netty SslContext setup. The default JDK SSL provider (SslProvider.JDK) is not affected by this vulnerability. Most applications use the JDK default unless explicitly overridden.\n\n2) Use X509ExtendedTrustManager \u2014 If the OpenSSL provider is required, ensure the configured trust manager extends X509ExtendedTrustManager rather than the plain X509TrustManager interface. The extended variant performs hostname verification independently of the Netty wrapping logic.\n\n3) Run on Java 24 or earlier \u2014 The vulnerable code path only triggers on Java 25+ where sun.misc.Unsafe-based trust-manager wrapping is unavailable. Running on earlier Java versions (e.g., Java 21 LTS) means the wrapping works correctly and hostname verification stays enabled.",
"product_ids": [
"Red Hat Data Grid 8.6.3"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "io.netty/netty-handler: Netty: TLS hostname verification bypass via OpenSSL client path misconfiguration"
},
{
"cve": "CVE-2026-68494",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-08-04T15:01:53.631865+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2511026"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in jackson-core. A remote attacker can exploit an incomplete fix in the non-blocking JSON parser by streaming specially crafted JSON data in small chunks. This bypasses the intended number length constraint, causing the parser to accumulate excessive memory per connection. This uncontrolled memory growth can lead to a denial of service (DoS) by exhausting the Java Virtual Machine (JVM) heap.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "com.fasterxml.jackson.core/jackson-core: tools.jackson.core/jackson-core: jackson-core: Denial of Service via incomplete fix in async JSON parser",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service vulnerability in `jackson-core`\u0027s asynchronous JSON parser. A remote, unauthenticated attacker can exploit an incomplete fix to bypass number length constraints, leading to unbounded memory accumulation and potential JVM heap exhaustion in reactive frameworks processing chunked JSON input.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-68494"
},
{
"category": "external",
"summary": "RHBZ#2511026",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511026"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-68494",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-68494"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-68494",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68494"
},
{
"category": "external",
"summary": "https://github.com/FasterXML/jackson-core/commit/050b429804dce2a7e08f0be1b0b4c3d040fdb9cd",
"url": "https://github.com/FasterXML/jackson-core/commit/050b429804dce2a7e08f0be1b0b4c3d040fdb9cd"
},
{
"category": "external",
"summary": "https://github.com/FasterXML/jackson-core/commit/4cdd529749da396cc7edf6d4a2aad41d47902641",
"url": "https://github.com/FasterXML/jackson-core/commit/4cdd529749da396cc7edf6d4a2aad41d47902641"
},
{
"category": "external",
"summary": "https://github.com/FasterXML/jackson-core/commit/c5941e5aae7fd5aeac55d66933cfb82b9aabeef8",
"url": "https://github.com/FasterXML/jackson-core/commit/c5941e5aae7fd5aeac55d66933cfb82b9aabeef8"
},
{
"category": "external",
"summary": "https://github.com/FasterXML/jackson-core/pull/1611",
"url": "https://github.com/FasterXML/jackson-core/pull/1611"
},
{
"category": "external",
"summary": "https://github.com/FasterXML/jackson-core/security/advisories/GHSA-r7wm-3cxj-wff9",
"url": "https://github.com/FasterXML/jackson-core/security/advisories/GHSA-r7wm-3cxj-wff9"
},
{
"category": "external",
"summary": "https://github.com/advisories/GHSA-72hv-8253-57qq",
"url": "https://github.com/advisories/GHSA-72hv-8253-57qq"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-18401",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-18401"
}
],
"release_date": "2026-08-04T14:39:14.471000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "com.fasterxml.jackson.core/jackson-core: tools.jackson.core/jackson-core: jackson-core: Denial of Service via incomplete fix in async JSON parser"
},
{
"cve": "CVE-2026-73508",
"cwe": {
"id": "CWE-772",
"name": "Missing Release of Resource after Effective Lifetime"
},
"discovery_date": "2026-08-13T15:11:47.778030+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2515377"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Netty, an asynchronous network application framework. When processing malformed domain names in DNS packets, the DNS record decoder fails to release allocated memory. This vulnerability allows an unauthenticated remote attacker to incrementally leak direct memory, eventually leading to a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.netty/netty-codec-dns: Netty: Denial of Service via Memory Leak in DNS Record Decoder with Malformed Domain Names",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw is rated Important because the affected component fails to release allocated memory when it rejects a malformed domain name during DNS record decoding. An unauthenticated remote attacker who can send DNS traffic to an application using the affected DNS resolution functionality can incrementally exhaust available memory until the process becomes unresponsive, resulting in a complete denial of service.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-73508"
},
{
"category": "external",
"summary": "RHBZ#2515377",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515377"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-73508",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-73508"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-73508",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73508"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b",
"url": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6",
"url": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
"url": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
},
{
"category": "external",
"summary": "https://github.com/netty/netty/security/advisories/GHSA-mfg7-5gfp-c4w3",
"url": "https://github.com/netty/netty/security/advisories/GHSA-mfg7-5gfp-c4w3"
}
],
"release_date": "2026-08-13T14:27:20.298000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
},
{
"category": "workaround",
"details": "Red Hat recommends upgrading to a fixed version as the primary remediation. Where an immediate upgrade is not possible, restrict network access so that only trusted DNS servers and trusted network peers can send DNS traffic to the affected application, using firewall or network policy rules to block or rate-limit DNS traffic from untrusted sources. This reduces exposure to the malformed DNS records that trigger the issue but does not fully eliminate it; upgrading remains the only complete fix.",
"product_ids": [
"Red Hat Data Grid 8.6.3"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "io.netty/netty-codec-dns: Netty: Denial of Service via Memory Leak in DNS Record Decoder with Malformed Domain Names"
},
{
"cve": "CVE-2026-76844",
"cwe": {
"id": "CWE-22",
"name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
},
"discovery_date": "2026-08-24T13:23:01.901282+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2521896"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in webpack-dev-middleware. A remote attacker can exploit a path traversal vulnerability when the configured publicPath lacks a trailing slash. By sending a specially crafted request, the attacker can bypass a security guard, allowing the middleware to resolve files from one directory above the intended output path. This could lead to information disclosure if the middleware is configured to use the physical filesystem.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "webpack-dev-middleware: webpack-dev-middleware: Information Disclosure via Path Traversal",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A path traversal flaw exists in webpack-dev-middleware when resolving URLs using a publicPath configuration lacking a trailing slash. By supplying a crafted URL with improper dot-dot positioning within a segment, an attacker can bypass the path traversal validation guard and offset calculation. When backed by a physical filesystem (writeToDisk enabled or custom outputFileSystem), this allows an unauthenticated remote attacker to read arbitrary files one directory level above the intended output directory.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Data Grid 8.6.3"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-76844"
},
{
"category": "external",
"summary": "RHBZ#2521896",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521896"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-76844",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-76844"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-76844",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76844"
},
{
"category": "external",
"summary": "https://github.com/advisories/GHSA-wr3j-pwj9-hqq6",
"url": "https://github.com/advisories/GHSA-wr3j-pwj9-hqq6"
},
{
"category": "external",
"summary": "https://github.com/webpack/webpack-dev-middleware",
"url": "https://github.com/webpack/webpack-dev-middleware"
},
{
"category": "external",
"summary": "https://github.com/webpack/webpack-dev-middleware/blob/v8.1.1/src/middleware.js",
"url": "https://github.com/webpack/webpack-dev-middleware/blob/v8.1.1/src/middleware.js"
},
{
"category": "external",
"summary": "https://www.vulncheck.com/advisories/webpack-dev-middleware-path-traversal-via-offset-slice-on-a-non-slash-terminated-publicpath",
"url": "https://www.vulncheck.com/advisories/webpack-dev-middleware-path-traversal-via-offset-slice-on-a-non-slash-terminated-publicpath"
}
],
"release_date": "2026-08-24T13:12:01.148000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-21T12:19:52+00:00",
"details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat Data Grid 8.6.3"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:69296"
},
{
"category": "workaround",
"details": "Ensure that the configured publicPath always ends with a trailing slash (e.g., \u0027/assets/\u0027), or utilize the default setting (\u0027auto\u0027), which resolves to \u0027/\u0027 and is unmitigated by default. Alternatively, avoid backing the middleware with a physical filesystem (writeToDisk: false).",
"product_ids": [
"Red Hat Data Grid 8.6.3"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"Red Hat Data Grid 8.6.3"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "webpack-dev-middleware: webpack-dev-middleware: Information Disclosure via Path Traversal"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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