RHSA-2026:99044
Vulnerability from csaf_redhat - Published: 2026-11-11 16:11 - Updated: 2026-11-13 23:33A flaw was found in the Go net/http package. This flaw allows a remote attacker to cause a Denial of Service (DoS) by triggering excessive CPU consumption on an affected client or server. By opening a large number of HTTP/2 streams and repeatedly sending small configuration (SETTINGS) frames that modify window sizes, an attacker forces the system into intensive state processing. This resource exhaustion degrades performance and can render the service unresponsive.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:26626a0359a923036061b3cd91a07da3a487d07006e446f63a090a5033bb1a91_amd64 | — |
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| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:d2b0d41a3ea3cd8978cdd706628834274fbcde3930e94ea24bd0039830f27d32_amd64 | — |
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| Unresolved product id: Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-must-gather-rhel9@sha256:490a4af0b621d57feaf880a7475e69c42daaa3fb03370e02745874ee73866c30_amd64 | — |
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| Unresolved product id: Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:678190bb06b817aa80ccfb9a1d1c92564e9d1044cdb1650b299ae719d16bcdee_amd64 | — |
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| Unresolved product id: Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rag-content-rhel9@sha256:1c60236a1acfc0845f4b4fed0fba43ef3e82ee310d8f4ed4d5007e1816a4316c_amd64 | — |
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A flaw was found in undici. A remote server can cause a Denial of Service (DoS) by initiating a Transport Layer Security (TLS) renegotiation and presenting a certificate with a mismatched hostname. Because the client application fails to properly handle the resulting verification error, an uncaught assertion is triggered, terminating the client process and disrupting active network requests.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:d2b0d41a3ea3cd8978cdd706628834274fbcde3930e94ea24bd0039830f27d32_amd64 | — |
Vendor Fix
fix
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| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-must-gather-rhel9@sha256:490a4af0b621d57feaf880a7475e69c42daaa3fb03370e02745874ee73866c30_amd64 | — | ||
| Unresolved product id: Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:678190bb06b817aa80ccfb9a1d1c92564e9d1044cdb1650b299ae719d16bcdee_amd64 | — | ||
| Unresolved product id: Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rag-content-rhel9@sha256:1c60236a1acfc0845f4b4fed0fba43ef3e82ee310d8f4ed4d5007e1816a4316c_amd64 | — | ||
| Unresolved product id: Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:26626a0359a923036061b3cd91a07da3a487d07006e446f63a090a5033bb1a91_amd64 | — |
A flaw was found in undici. A remote malicious or compromised HTTP server can cause a Denial of Service (DoS) by sending a small compressed response that decompresses beyond configured size limits. Because undici fails to catch errors triggered by response handlers during decompression, an unhandled exception is produced that crashes the client application.
A flaw was found in brace-expansion. A remote attacker can provide specially crafted brace patterns with excessive nested groups or large arrays to trigger uncontrolled recursion during parsing. This behavior exhausts the native call stack and crashes the application process, leading to a Denial of Service (DoS).
A flaw was found in brace-expansion. A remote attacker can cause a Denial of Service (DoS) by supplying untrusted input containing deeply nested brace patterns. Due to uncontrolled recursion during pattern processing, expanding these nested structures exhausts the call stack and causes the application to crash.
A flaw was found in @backstage/backend-defaults. The package fails to properly preserve access restrictions during service credential delegation when requests are routed through plugin delegation paths. An authenticated service with limited privileges can exploit this issue to bypass access controls and perform unauthorized operations, such as modifying data on restricted plugins.
A flaw was found in @backstage/plugin-catalog-backend. An authenticated remote user can craft a catalog entity containing placeholder directives that reference resources outside the entity's source repository due to improper URL validation. Under certain configurations, this can lead to information disclosure by allowing access to unauthorized data.
A flaw was found in @backstage/plugin-scaffolder-backend. Due to improper task state validation, an authenticated user with permissions to create and access Scaffolder tasks can affect files accessible to the Backstage backend under specific timing and deployment conditions. If the backend application files are writable, this issue can compromise the confidentiality, integrity, and availability of the backend environment.
A flaw was found in @backstage/plugin-scaffolder-backend. An authenticated user with permission to view another user's Scaffolder task can retrieve internal task execution data, leading to sensitive information disclosure. If this execution data contains credentials for external services, an attacker could expose those credentials and perform unauthorized actions within those services.
A flaw was found in the Backstage plugin-scaffolder-backend component. An authorization bypass allows an authenticated user with access to Scaffolder templates to circumvent configured action restrictions. By manipulating action inputs, an attacker can leverage integration credentials to gain unauthorized access to source-control repositories and associated resources.
A flaw was found in undici. This vulnerability may allow a remote attacker to intercept or modify encrypted communications by bypassing custom certificate validation. The issue occurs because the Agent dispatcher discards caller-supplied Transport Layer Security (TLS) verification functions during internal configuration copying, causing the client to silently ignore application-specific checks such as certificate or public-key pinning.
A flaw was found in undici. When an application configures redirect handling alongside a shared cache, responses received after cross-origin redirects are incorrectly stored under the initial request URL. A remote attacker who controls a redirect destination can exploit this vulnerability to poison the shared cache, serving malicious content to subsequent users requesting trusted URLs. Additionally, this behavior can result in information disclosure if private or user-specific responses are cached and delivered to unauthorized callers.
A flaw was found in undici. The HTTP client improperly handles case sensitivity when verifying Subresource Integrity (SRI) algorithm tokens. When an application specifies an uppercase or mixed-case algorithm name, undici treats the token as unrecognized and skips verification instead of enforcing it. A remote attacker who controls the HTTP response body can exploit this flaw to deliver modified content without triggering an integrity error, bypassing intended security protections.
A flaw was found in undici. When an application sends a request to a malicious remote server, the server can return a response with excessive content encodings and immediately close the connection. Because the underlying response stream is left unhandled, this abrupt closure triggers an unhandled error that causes the application process to crash. Consequently, an attacker operating a remote server can cause a Denial of Service (DoS), terminating the application even if standard error handling is implemented.
A flaw was found in undici. A malicious server can trigger a Denial of Service (DoS) by exhausting application memory. When an application connects to an untrusted Server-Sent Events (SSE) feed, the EventSource parser does not properly limit retained internal state when processing fragmented lines or repeated message fields. This allows an attacker to send crafted or compressed responses that consume excessive memory and terminate the application process.
A flaw was found in undici. A malicious or compromised WebSocket server can trigger a Denial of Service (DoS) by repeatedly sending small PING messages while refusing to read the client's automated replies. Because the client ignores flow-control signals when writing responses to the network socket, unread messages accumulate indefinitely in memory. This unchecked memory consumption can exhaust available system memory and cause the application process to terminate.
A flaw was found in the Google Brotli decoder. An out-of-bounds write in the block-type switch handling in c/dec/decode.c can be triggered by a crafted Brotli-compressed stream. When an application decompresses untrusted Brotli data, this can lead to memory disclosure, denial of service, or potentially arbitrary code execution.
A flaw was found in markdown-it. A remote attacker can cause a Denial of Service (DoS) by providing specially crafted Markdown input that contains an unclosed link reference definition spanning multiple lines. Processing this input triggers excessive CPU consumption due to inefficient string handling, which can cause the application to hang and become unresponsive to other users.
A flaw was found in markdown-it. A remote attacker can trigger a Denial of Service (DoS) by submitting specially crafted Markdown input containing numerous mismatched quotation marks when typographer mode is enabled. This input causes the parser to repeatedly rescan quote tokens, resulting in quadratic processing time and excessive CPU consumption.
A flaw was found in Go's crypto/x509 package. The certificate verification process fails to block trust in intermediate certificates associated with a compromised Certificate Authority (CA). A remote attacker presenting a certificate signed by these intermediate authorities can impersonate legitimate servers during secure connections. This flaw can enable an attacker to conduct a man-in-the-middle (MitM) attack to intercept or alter confidential communications.
A flaw was found in multer. A remote attacker could cause a Denial of Service (DoS) by sending and abruptly aborting a file upload request when an asynchronous file filter is configured. When the aborted request's pending filter callback finishes, it triggers an unhandled stream error, leading to an application process crash.
The system certificate authority (CA) store in Red Hat products, distributed via ca-certificates RPM packages, included multiple root CA certificates of authorities, which signed intermediate CA certificates with weak private keys issued by the eMudhra certificate authority. A man-in-the-middle attacker could use this flaw to issue certificates for arbitrary host names signed by the weak intermediate CA certificates, which would be considered trusted by a TLS/SSL client using system CA store and cause such clients to connect to malicious sites. Due to inability to only distrust specific intermediate certificates in all clients using the system CA store, root CA certificates of authorities that signed weak intermediate CA certificates are being removed.
A flaw was found in systeminformation. On Windows systems, the library's input sanitization removes standard quotation marks but fails to filter Unicode quotation marks when constructing PowerShell commands. An attacker who can supply input to an application using this library can exploit this flaw to break out of the intended command context and execute arbitrary commands with the privileges of the running Node.js process. This can lead to unauthorized data access, system modification, or service disruption.
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},
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"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.",
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "undici: undici: Denial of Service via unhandled exception in decompress interceptor",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated as Moderate impact because successful exploitation requires an application to connect to an untrusted or compromised HTTP server and utilize a specific client interceptor configuration. A denial of service condition only occurs when the decompression interceptor is composed with a downstream handler that throws errors upon receiving oversized responses. Standard Red Hat environments that connect exclusively to trusted endpoints or run default HTTP pipelines without this specific combination of interceptors are not susceptible to this failure.",
"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"
}
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"name": "Improper Preservation of Permissions"
},
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"title": "Vulnerability description"
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{
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"title": "Vulnerability summary"
},
{
"category": "other",
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"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"
}
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},
{
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},
{
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"title": "Statement"
},
{
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"title": "CVSS score applicability"
}
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{
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"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated as Important severity because authenticated remote users with rights to run software templates can alter files within the backend service environment, posing a risk to data integrity and system confidentiality. While the flaw requires valid user credentials and specific Scaffolder permissions rather than being exploitable by unauthenticated attackers, the potential ability to manipulate host or container files elevates the severity above Moderate. In typical Red Hat Developer Hub and Ansible Automation Platform deployments, the affected component operates within containerized environments, which restricts the blast radius to writable mounts while preventing direct host operating system compromise.",
"title": "Statement"
},
{
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"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"
}
],
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},
{
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"title": "Statement"
},
{
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}
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},
{
"cve": "CVE-2026-106503",
"cwe": {
"id": "CWE-807",
"name": "Reliance on Untrusted Inputs in a Security Decision"
},
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"title": "Vulnerability description"
},
{
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"text": "plugin-scaffolder-backend: plugin-scaffolder-backend: Authorization bypass via scaffolder action inputs",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated as an Important severity because authenticated remote users can circumvent execution guardrails defined for backend actions, creating high confidentiality and integrity risks for connected source control management systems. In Red Hat Developer Hub and Ansible Automation Platform environments where software templates are enabled, users with permission to run Scaffolder tasks could manipulate input parameters beyond authorized boundaries. The overall exposure is determined by the privilege scope granted to underlying integration service accounts and tokens.",
"title": "Statement"
},
{
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"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"
}
],
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},
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},
{
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"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.",
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"title": "CVSS score applicability"
}
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}
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"category": "impact",
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"title": "undici: undici: Denial of Service via unbounded WebSocket PONG buffering"
},
{
"cve": "CVE-2026-111497",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
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}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Google Brotli decoder. An out-of-bounds write in the block-type switch handling in c/dec/decode.c can be triggered by a crafted Brotli-compressed stream. When an application decompresses untrusted Brotli data, this can lead to memory disclosure, denial of service, or potentially arbitrary code execution.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "brotli: Out-of-Bounds Write in Google Brotli Decoder",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue is rated Important. Exploitation requires that the target decompress attacker-controlled Brotli data (for example HTTP content negotiated with Content-Encoding: br, or APIs such as Node.js zlib / fetch() that decode Brotli). The vulnerable path is reached with a malformed stream rather than typical well-formed encoder output. Red Hat Enterprise Linux compiler and runtime hardenings - including Address Space Layout Randomization (ASLR), Non-eXecutable (NX) memory, FORTIFY_SOURCE, and SELinux - increase the difficulty of turning this memory corruption into reliable code execution, though they do not eliminate crashes or all impact. Combined with the Attack Requirements noted by the CNA (CVSS v4 AT:P), Red Hat scores Attack Complexity as High and rates the flaw Important rather than Critical.\n\n---\n\nThe Node.js packages in Red Hat Enterprise Linux use either system version of brotli or bundled version. Some Node.js versions are marked \"Not affected\" because they utilize system brotli. For these versions, the Node.js package itself does not require updating. However, customers must still update the system brotli/libbrotli package to address the vulnerability for these Node.js installations.\n\nFollowing is the overview of Node.js versions use system or bundled version.\n\n- Node.js 22 in Red Hat Enterprise Linux 8 and 9, provided via nodejs:22 module, uses system brotli.\n- Node.js 24 in Red Hat Enterprise Linux 8 and 9, provided via nodejs:24 modules, use bundled brotli.\n- Node.js 22 and 24 in Red Hat Enterprise Linux 10, provided via nodejs22 and nodejs24 use system brotli.\n\n---\n\nThe .NET packages in Red Hat Enterprise Linux may either use system version of brotli or bundled version. Following is the overview of .NET versions use system or bundled version.\n\n- .NET 8.0 in Red Hat Enterprise Linux 8, 9, and 10, provided via dotnet8.0 packages, use bundled brotli.\n- .NET 9.0, 10.0, and 11.0 in Red Hat Enterprise Linux 8, 9, and 10, provided via dotnet9.0, dotnet10.0, and dotnet11.0 use system brotli.\n\n---\n\nRed Hat OpenShift Service Mesh ships the vulnerable Brotli decoder code compiled into the istio-proxy; however, it is not affected by this security flaw by default. The vulnerable code is only reachable if a custom EnvoyFilter configures the envoy.filters.http.decompressor filter with Brotli - the Service Mesh control plane never generates this filter. All currently supported OpenShift Service Mesh streams (3.1, 3.2, 3.3 and 3.4) are not-affected and no fix is required. OpenShift Service Mesh 2.6 (out of support since 30 June 2026) and 3.0 (out of support since 31 October 2026) will not receive a fix for this CVE.",
"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": {
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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-111497"
},
{
"category": "external",
"summary": "RHBZ#2558973",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2558973"
},
{
"category": "external",
"summary": "RHSB-2026-015",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-015"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-111497",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-111497"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-111497",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111497"
},
{
"category": "external",
"summary": "https://nodejs.org/en/blog/vulnerability/october-2026-security-releases#nodejs-brotli-decoder-out-of-bounds-write-permits-remote-code-execution-cve-2026-111497---high",
"url": "https://nodejs.org/en/blog/vulnerability/october-2026-security-releases#nodejs-brotli-decoder-out-of-bounds-write-permits-remote-code-execution-cve-2026-111497---high"
},
{
"category": "external",
"summary": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
}
],
"release_date": "2026-10-22T13:35:41.975000+00:00",
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{
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"date": "2026-11-11T16:11:16+00:00",
"details": "For more about Red Hat Developer Hub, see References links",
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:99044"
},
{
"category": "workaround",
"details": "See the security bulletin for a detailed mitigation procedure.",
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]
}
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"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:H",
"version": "3.1"
},
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"threats": [
{
"category": "exploit_status",
"date": "2026-10-27T00:00:00+00:00",
"details": "CISA: https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
},
{
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"details": "Important"
}
],
"title": "brotli: Out-of-Bounds Write in Google Brotli Decoder"
},
{
"cve": "CVE-2026-111758",
"cwe": {
"id": "CWE-1046",
"name": "Creation of Immutable Text Using String Concatenation"
},
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],
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2556455"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in markdown-it. A remote attacker can cause a Denial of Service (DoS) by providing specially crafted Markdown input that contains an unclosed link reference definition spanning multiple lines. Processing this input triggers excessive CPU consumption due to inefficient string handling, which can cause the application to hang and become unresponsive to other users.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "markdown-it: markdown-it: Denial of Service via unclosed link reference definitions",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated as Important severity because an unauthenticated remote attacker can exhaust server CPU resources without elevated privileges, leading to complete service disruption. In Red Hat environments, applications that process user-supplied Markdown content\u2014such as Developer Hub and Dev Spaces\u2014are vulnerable to event loop stalls when handling maliciously formatted documents. The flaw stems from quadratic parsing behavior on unclosed reference definitions, which allows relatively small multi-line payloads to consume significant processing time and render the shared service unresponsive.",
"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": {
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},
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2556455"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-111758",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-111758"
},
{
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"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-111758",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111758"
},
{
"category": "external",
"summary": "https://github.com/markdown-it/markdown-it/commit/48fbc465812c440020c663f040ab22deaf8f1eca",
"url": "https://github.com/markdown-it/markdown-it/commit/48fbc465812c440020c663f040ab22deaf8f1eca"
},
{
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"summary": "https://github.com/markdown-it/markdown-it/commit/d99f48839d37af6fd8a2617516c43dab90755503",
"url": "https://github.com/markdown-it/markdown-it/commit/d99f48839d37af6fd8a2617516c43dab90755503"
},
{
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"summary": "https://github.com/markdown-it/markdown-it/releases/tag/14.3.3",
"url": "https://github.com/markdown-it/markdown-it/releases/tag/14.3.3"
},
{
"category": "external",
"summary": "https://github.com/markdown-it/markdown-it/releases/tag/15.0.3",
"url": "https://github.com/markdown-it/markdown-it/releases/tag/15.0.3"
},
{
"category": "external",
"summary": "https://github.com/markdown-it/markdown-it/security/advisories/GHSA-gfr2-rv44-r23c",
"url": "https://github.com/markdown-it/markdown-it/security/advisories/GHSA-gfr2-rv44-r23c"
}
],
"release_date": "2026-10-20T20:28:40.677000+00:00",
"remediations": [
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"date": "2026-11-11T16:11:16+00:00",
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:99044"
},
{
"category": "workaround",
"details": "--- CME Mitigation Guidance (2026-10-20) ---\nDisclaimer: The following mitigation solutions are provided as a courtesy, pending the application of an official patch. This content was generated utilizing AI tools in conjunction with data from https://cmetaxonomy.org. Customers are advised to independently evaluate and test these temporary mitigations within their own infrastructure.\n\nThe highest-value action is to disable the markdown-it reference block rule or avoid lazy string concatenation during multi-line link reference parsing: upgrade to markdown-it 14.3.3 and 15.0.3 (or the fixed Libgit/Forgejo/Ansible/Libgit2/Nextcloud/Markdownlint Cli/Rhoai/Odh Workbench Codeserver Datascience Cpu Py312 Rhel/Rhdh/Rhdh Hub Rhel/Devspaces/Code Rhel/Devspaces/Openvsx Rhel/Devspaces/Pluginregistry Rhel/Thrift/Ansible Automation Platform/Automation Portal/Rhoai/Odh Feature Server Rhel/Rhdh/Red Hat Developer Hub Backstage Plugin Orchestrator Backend/Ansible Automation Platform/Bootc Automation Portal Rhel/Rh Podman Desktop/Rhdh/Red Hat Developer Hub Backstage Plugin Lightspeed Backend/Redhat User Workloads/Mintmaker Renovate Image builds), which scan the source string directly by index position and enforce a 999-character limit on reference labels instead of lazily concatenating continuation lines, closing all 2 injection vectors (crafted multi-line unclosed link reference label, crafted multi-line unclosed link reference title). Until patched, this is a concern on applications parsing untrusted user-supplied Markdown with the reference block rule enabled, so disable the reference rule via configuration or restrict untrusted user Markdown input parsing. As a compensating measure, set per-process CPU time limits via RLIMIT_CPU to bound excessive processing time from quadratic string flattening and apply rate limiting and connection throttling to restrict repeated parsing requests. These controls limit blast radius and contain exploitation, but they do not fix the underlying quadratic cons-string flattening defect \u2014 apply the upstream patch to fully remediate.\n\nHighest-impact CME: CME-1316 Algorithmic Complexity Safeguards (Pattern/Regex Execution Limits) (high)",
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"baseScore": 7.5,
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"title": "markdown-it: markdown-it: Denial of Service via unclosed link reference definitions"
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{
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"cwe": {
"id": "CWE-606",
"name": "Unchecked Input for Loop Condition"
},
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2555740"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in markdown-it. A remote attacker can trigger a Denial of Service (DoS) by submitting specially crafted Markdown input containing numerous mismatched quotation marks when typographer mode is enabled. This input causes the parser to repeatedly rescan quote tokens, resulting in quadratic processing time and excessive CPU consumption.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "markdown-it: markdown-it: Denial of Service via mismatched quote parsing",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated as having Important impact because an unauthenticated remote attacker can exhaust server CPU resources and stall single-threaded Node.js event loops by supplying crafted markdown to services that enable typographer extensions. Although typographer mode is disabled by default in standard markdown-it deployments, services exposing user-facing text formatting and portal documentation frequently activate this feature. In environments where untrusted users can submit arbitrary content for server-side parsing, this algorithmic complexity flaw can result in complete denial of service for the host application.",
"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"
}
],
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]
},
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-111759"
},
{
"category": "external",
"summary": "RHBZ#2555740",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2555740"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-111759",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-111759"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-111759",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111759"
},
{
"category": "external",
"summary": "https://github.com/markdown-it/markdown-it/commit/1b379c1b6d0522421bd1a51b77337c79af2c8670",
"url": "https://github.com/markdown-it/markdown-it/commit/1b379c1b6d0522421bd1a51b77337c79af2c8670"
},
{
"category": "external",
"summary": "https://github.com/markdown-it/markdown-it/commit/cf27366035edf9196667110c47d9d67b030a4152",
"url": "https://github.com/markdown-it/markdown-it/commit/cf27366035edf9196667110c47d9d67b030a4152"
},
{
"category": "external",
"summary": "https://github.com/markdown-it/markdown-it/commit/daf5a3c32303e5d9de01b12eeb725fb5990b8162",
"url": "https://github.com/markdown-it/markdown-it/commit/daf5a3c32303e5d9de01b12eeb725fb5990b8162"
},
{
"category": "external",
"summary": "https://github.com/markdown-it/markdown-it/releases/tag/14.3.2",
"url": "https://github.com/markdown-it/markdown-it/releases/tag/14.3.2"
},
{
"category": "external",
"summary": "https://github.com/markdown-it/markdown-it/releases/tag/15.0.2",
"url": "https://github.com/markdown-it/markdown-it/releases/tag/15.0.2"
},
{
"category": "external",
"summary": "https://github.com/markdown-it/markdown-it/security/advisories/GHSA-r7fv-28h4-cvq7",
"url": "https://github.com/markdown-it/markdown-it/security/advisories/GHSA-r7fv-28h4-cvq7"
}
],
"release_date": "2026-10-19T17:39:10.264000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-11-11T16:11:16+00:00",
"details": "For more about Red Hat Developer Hub, see References links",
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"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:d2b0d41a3ea3cd8978cdd706628834274fbcde3930e94ea24bd0039830f27d32_amd64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:99044"
},
{
"category": "workaround",
"details": "--- CME Mitigation Guidance (2026-10-20) ---\nDisclaimer: The following mitigation solutions are provided as a courtesy, pending the application of an official patch. This content was generated utilizing AI tools in conjunction with data from https://cmetaxonomy.org. Customers are advised to independently evaluate and test these temporary mitigations within their own infrastructure.\n\nThe highest-value action is to disable typographer mode or the smartquotes inline rule across all markdown-it instances processing untrusted user input: upgrade to markdown-it 14.3.2 and 15.0.2 (or the fixed Libgit/Libgit2/Nextcloud/Forgejo/Ansible/Rhoai/Odh Workbench Codeserver Datascience Cpu Py312 Rhel/Rhdh/Rhdh Hub Rhel/Devspaces/Code Rhel/Devspaces/Openvsx Rhel/Devspaces/Pluginregistry Rhel/Thrift/Ansible Automation Platform/Automation Portal/Rhoai/Odh Feature Server Rhel/Rhdh/Red Hat Developer Hub Backstage Plugin Orchestrator Backend/Ansible Automation Platform/Bootc Automation Portal Rhel/Rh Podman Desktop/Rhdh/Red Hat Developer Hub Backstage Plugin Lightspeed Backend/Redhat User Workloads/Mintmaker Renovate Image builds), which track latest single and double quote openers directly using head pointers and cap the quote opener stack at 1,000 items, closing crafted Markdown with numerous opening quotes followed by mismatched closing quotes. Until patched, this is a concern on applications and services parsing untrusted Markdown with typographer mode or smartquotes enabled, so disable the typographer configuration option or explicitly disable the smartquotes rule in all markdown-it parser instances accepting user-supplied content. As a compensating measure, enforce RLIMIT_CPU limits on parser worker processes to bound maximum CPU time consumption, configure systemd watchdog monitoring and automatic restart directives to recover stalled parser processes, restrict the maximum character length and token count of accepted Markdown input, constrain CPU quotas using cgroups v2 to contain the blast radius of parser CPU exhaustion, and throttle incoming HTTP request rates and connections on endpoints accepting Markdown payloads. These controls limit blast radius and contain exploitation, but they do not fix the underlying quadratic quote rescanning complexity defect \u2014 apply the upstream patch to fully remediate.\n\nHighest-impact CME: CME-1316 Algorithmic Complexity Safeguards (Pattern/Regex Execution Limits) (high)",
"product_ids": [
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]
}
],
"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": [
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"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-must-gather-rhel9@sha256:490a4af0b621d57feaf880a7475e69c42daaa3fb03370e02745874ee73866c30_amd64",
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"title": "markdown-it: markdown-it: Denial of Service via mismatched quote parsing"
},
{
"cve": "CVE-2026-111943",
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"id": "CWE-295",
"name": "Improper Certificate Validation"
},
"discovery_date": "2026-10-20T09:38:36.160000+00:00",
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2556068"
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],
"notes": [
{
"category": "description",
"text": "A flaw was found in Go\u0027s crypto/x509 package. The certificate verification process fails to block trust in intermediate certificates associated with a compromised Certificate Authority (CA). A remote attacker presenting a certificate signed by these intermediate authorities can impersonate legitimate servers during secure connections. This flaw can enable an attacker to conduct a man-in-the-middle (MitM) attack to intercept or alter confidential communications.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated Important because Go applications validating TLS certificates could accept unauthorized certificates issued by distrusted intermediate Certificate Authorities, potentially compromising the integrity and confidentiality of secure network communications. Any Go-based client or server relying on standard certificate verification may be exposed to man-in-the-middle attacks if an attacker intercepts traffic using certificates derived from these intermediate keys. Exploitation requires specific network positioning and certificates generated by the untrusted intermediate authorities, limiting opportunistic widespread abuse.",
"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"
}
],
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"fixed": [
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]
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-111943"
},
{
"category": "external",
"summary": "RHBZ#2556068",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2556068"
},
{
"category": "external",
"summary": "RHSB-2026-012",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-012"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-111943",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-111943"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-111943",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111943"
},
{
"category": "external",
"summary": "https://github.com/golang/go/issues/82345",
"url": "https://github.com/golang/go/issues/82345"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-nuts/c/K22sG2AYnKU",
"url": "https://groups.google.com/g/golang-nuts/c/K22sG2AYnKU"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-6809",
"url": "https://pkg.go.dev/vuln/GO-2026-6809"
}
],
"release_date": "2026-10-20T02:00:00+00:00",
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"date": "2026-11-11T16:11:16+00:00",
"details": "For more about Red Hat Developer Hub, see References links",
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],
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},
{
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"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
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"details": "Important"
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"title": "crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates"
},
{
"cve": "CVE-2026-113872",
"cwe": {
"id": "CWE-248",
"name": "Uncaught Exception"
},
"discovery_date": "2026-10-22T14:31:26.650110+00:00",
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"ids": [
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"system_name": "Red Hat Bugzilla ID",
"text": "2559046"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in multer. A remote attacker could cause a Denial of Service (DoS) by sending and abruptly aborting a file upload request when an asynchronous file filter is configured. When the aborted request\u0027s pending filter callback finishes, it triggers an unhandled stream error, leading to an application process crash.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "multer: multer: Denial of Service via aborted request during asynchronous file filtering",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated as Important because an unauthenticated remote attacker can trigger an unhandled exception that terminates the Node.js application process with a single aborted request, causing a complete denial of service. Within Red Hat environments hosting services built on Node.js, the issue only manifests if endpoints implement custom asynchronous file filters during multipart upload handling. Systems that rely on synchronous file filters or default upload configurations remain unaffected. Although container orchestration platforms may automatically restart failed service pods, repeated exploitation could sustain an availability outage.",
"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"
}
],
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{
"category": "external",
"summary": "RHBZ#2559046",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559046"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-113872",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-113872"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-113872",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113872"
},
{
"category": "external",
"summary": "https://cna.openjsf.org/security-advisories.html",
"url": "https://cna.openjsf.org/security-advisories.html"
},
{
"category": "external",
"summary": "https://github.com/expressjs/multer/security/advisories/GHSA-q7qp-rjg7-q26m",
"url": "https://github.com/expressjs/multer/security/advisories/GHSA-q7qp-rjg7-q26m"
}
],
"release_date": "2026-10-22T14:20:18.363000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-11-11T16:11:16+00:00",
"details": "For more about Red Hat Developer Hub, see References links",
"product_ids": [
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:d2b0d41a3ea3cd8978cdd706628834274fbcde3930e94ea24bd0039830f27d32_amd64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:99044"
}
],
"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": [
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"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-must-gather-rhel9@sha256:490a4af0b621d57feaf880a7475e69c42daaa3fb03370e02745874ee73866c30_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:678190bb06b817aa80ccfb9a1d1c92564e9d1044cdb1650b299ae719d16bcdee_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rag-content-rhel9@sha256:1c60236a1acfc0845f4b4fed0fba43ef3e82ee310d8f4ed4d5007e1816a4316c_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:26626a0359a923036061b3cd91a07da3a487d07006e446f63a090a5033bb1a91_amd64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "multer: multer: Denial of Service via aborted request during asynchronous file filtering"
},
{
"cve": "CVE-2026-114406",
"cwe": {
"id": "CWE-295",
"name": "Improper Certificate Validation"
},
"discovery_date": "2026-10-20T09:01:55.916000+00:00",
"flags": [
{
"label": "vulnerable_code_not_present",
"product_ids": [
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"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:678190bb06b817aa80ccfb9a1d1c92564e9d1044cdb1650b299ae719d16bcdee_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rag-content-rhel9@sha256:1c60236a1acfc0845f4b4fed0fba43ef3e82ee310d8f4ed4d5007e1816a4316c_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:26626a0359a923036061b3cd91a07da3a487d07006e446f63a090a5033bb1a91_amd64"
]
}
],
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2556046"
}
],
"notes": [
{
"category": "description",
"text": "The system certificate authority (CA) store in Red Hat products, distributed via ca-certificates RPM packages, included multiple root CA certificates of authorities, which signed intermediate CA certificates with weak private keys issued by the eMudhra certificate authority. A man-in-the-middle attacker could use this flaw to issue certificates for arbitrary host names signed by the weak intermediate CA certificates, which would be considered trusted by a TLS/SSL client using system CA store and cause such clients to connect to malicious sites.\n\nDue to inability to only distrust specific intermediate certificates in all clients using the system CA store, root CA certificates of authorities that signed weak intermediate CA certificates are being removed.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "ca-certificates: Distrust eMudhra intermediate CA certificates due to security concerns",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This CVE has been assigned to track trust store updates to distrust compromised certificates, but is not a vulnerability. For details, see RHSB-2026-012.",
"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 Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:d2b0d41a3ea3cd8978cdd706628834274fbcde3930e94ea24bd0039830f27d32_amd64"
],
"known_not_affected": [
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-must-gather-rhel9@sha256:490a4af0b621d57feaf880a7475e69c42daaa3fb03370e02745874ee73866c30_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:678190bb06b817aa80ccfb9a1d1c92564e9d1044cdb1650b299ae719d16bcdee_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rag-content-rhel9@sha256:1c60236a1acfc0845f4b4fed0fba43ef3e82ee310d8f4ed4d5007e1816a4316c_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:26626a0359a923036061b3cd91a07da3a487d07006e446f63a090a5033bb1a91_amd64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-114406"
},
{
"category": "external",
"summary": "RHBZ#2556046",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2556046"
},
{
"category": "external",
"summary": "RHSB-2026-012",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-012"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-114406",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114406"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-114406",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114406"
}
],
"release_date": "2026-10-20T13:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-11-11T16:11:16+00:00",
"details": "For more about Red Hat Developer Hub, see References links",
"product_ids": [
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:d2b0d41a3ea3cd8978cdd706628834274fbcde3930e94ea24bd0039830f27d32_amd64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:99044"
},
{
"category": "workaround",
"details": "See the security bulletin for a detailed mitigation procedure.",
"product_ids": [
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:d2b0d41a3ea3cd8978cdd706628834274fbcde3930e94ea24bd0039830f27d32_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-must-gather-rhel9@sha256:490a4af0b621d57feaf880a7475e69c42daaa3fb03370e02745874ee73866c30_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:678190bb06b817aa80ccfb9a1d1c92564e9d1044cdb1650b299ae719d16bcdee_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rag-content-rhel9@sha256:1c60236a1acfc0845f4b4fed0fba43ef3e82ee310d8f4ed4d5007e1816a4316c_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:26626a0359a923036061b3cd91a07da3a487d07006e446f63a090a5033bb1a91_amd64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"products": [
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:d2b0d41a3ea3cd8978cdd706628834274fbcde3930e94ea24bd0039830f27d32_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-must-gather-rhel9@sha256:490a4af0b621d57feaf880a7475e69c42daaa3fb03370e02745874ee73866c30_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:678190bb06b817aa80ccfb9a1d1c92564e9d1044cdb1650b299ae719d16bcdee_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rag-content-rhel9@sha256:1c60236a1acfc0845f4b4fed0fba43ef3e82ee310d8f4ed4d5007e1816a4316c_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:26626a0359a923036061b3cd91a07da3a487d07006e446f63a090a5033bb1a91_amd64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Critical"
}
],
"title": "ca-certificates: Distrust eMudhra intermediate CA certificates due to security concerns"
},
{
"cve": "CVE-2026-116576",
"cwe": {
"id": "CWE-78",
"name": "Improper Neutralization of Special Elements used in an OS Command"
},
"discovery_date": "2026-10-26T20:31:30.724027+00:00",
"flags": [
{
"label": "vulnerable_code_not_present",
"product_ids": [
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-must-gather-rhel9@sha256:490a4af0b621d57feaf880a7475e69c42daaa3fb03370e02745874ee73866c30_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:678190bb06b817aa80ccfb9a1d1c92564e9d1044cdb1650b299ae719d16bcdee_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rag-content-rhel9@sha256:1c60236a1acfc0845f4b4fed0fba43ef3e82ee310d8f4ed4d5007e1816a4316c_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:26626a0359a923036061b3cd91a07da3a487d07006e446f63a090a5033bb1a91_amd64"
]
}
],
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2561068"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in systeminformation. On Windows systems, the library\u0027s input sanitization removes standard quotation marks but fails to filter Unicode quotation marks when constructing PowerShell commands. An attacker who can supply input to an application using this library can exploit this flaw to break out of the intended command context and execute arbitrary commands with the privileges of the running Node.js process. This can lead to unauthorized data access, system modification, or service disruption.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "systeminformation: systeminformation: Command injection via improper quotation mark sanitization",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is evaluated as having an Important impact for Red Hat products because improper input sanitization could permit arbitrary command execution under the privileges of the application process. However, the affected code path specifically relies on PowerShell invocations utilized during Windows system inspection, which are not executed on Red Hat enterprise Linux environments. Furthermore, the underlying component does not listen on network interfaces by default, requiring an integrating service to explicitly forward untrusted parameters into the query function to trigger the flaw.",
"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 Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:d2b0d41a3ea3cd8978cdd706628834274fbcde3930e94ea24bd0039830f27d32_amd64"
],
"known_not_affected": [
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"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:678190bb06b817aa80ccfb9a1d1c92564e9d1044cdb1650b299ae719d16bcdee_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rag-content-rhel9@sha256:1c60236a1acfc0845f4b4fed0fba43ef3e82ee310d8f4ed4d5007e1816a4316c_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:26626a0359a923036061b3cd91a07da3a487d07006e446f63a090a5033bb1a91_amd64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-116576"
},
{
"category": "external",
"summary": "RHBZ#2561068",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2561068"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-116576",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-116576"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-116576",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116576"
},
{
"category": "external",
"summary": "https://github.com/sebhildebrandt/systeminformation/commit/5014c6d25cfce7363b937977327baa853cdba0bf",
"url": "https://github.com/sebhildebrandt/systeminformation/commit/5014c6d25cfce7363b937977327baa853cdba0bf"
},
{
"category": "external",
"summary": "https://github.com/sebhildebrandt/systeminformation/releases/tag/v5.33.16",
"url": "https://github.com/sebhildebrandt/systeminformation/releases/tag/v5.33.16"
},
{
"category": "external",
"summary": "https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-3f7j-7jwc-fxfj",
"url": "https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-3f7j-7jwc-fxfj"
}
],
"release_date": "2026-10-26T20:18:33.224000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-11-11T16:11:16+00:00",
"details": "For more about Red Hat Developer Hub, see References links",
"product_ids": [
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:d2b0d41a3ea3cd8978cdd706628834274fbcde3930e94ea24bd0039830f27d32_amd64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:99044"
},
{
"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.\n\n--- CME Mitigation Guidance (2026-11-02) ---\nDisclaimer: The following mitigation solutions are provided as a courtesy, pending the application of an official patch. This content was generated utilizing AI tools in conjunction with data from https://cmetaxonomy.org. Customers are advised to independently evaluate and test these temporary mitigations within their own infrastructure.\n\nThe highest-value action is to avoid shell invocation or enforce strict character allowlists before passing service names to PowerShell within systeminformation: upgrade to systeminformation 5.33.16 (or the corresponding fixed Red Hat builds), which remove Unicode quotation marks and dashes in sanitizeShellString() and enforce an allowed character whitelist for service names on Windows, closing all 2 injection vectors (crafted service names with Unicode quotation marks, PowerShell filter string termination). Until patched, this is only a concern on Windows systems hosting Node.js applications that forward untrusted input to services() or getDynamicData() \u2014 Red Hat Enterprise Linux environments, Linux, and macOS deployments are unaffected \u2014 so Audit and restrict application entry points to prevent untrusted input from reaching services() or getDynamicData(), or reject inputs containing non-ASCII characters and quotes. As a compensating measure, Sanitize downstream PowerShell argument and filter delimiters in user input prior to CLI command execution, Enforce Windows Defender Application Control in enforced mode with PowerShell Constrained Language Mode to block unauthorized binaries and commands an injected expression might run, and Deploy EDR agents to detect anomalous child process execution and suspicious PowerShell activity spawned by the Node.js process. These controls limit blast radius and contain exploitation, but they do not fix the underlying improper quotation mark sanitization defect \u2014 apply the upstream patch to fully remediate.\n\nHighest-impact CME: CME-1307 Command Injection Prevention (No Shell Invocation) (high)",
"product_ids": [
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:d2b0d41a3ea3cd8978cdd706628834274fbcde3930e94ea24bd0039830f27d32_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-must-gather-rhel9@sha256:490a4af0b621d57feaf880a7475e69c42daaa3fb03370e02745874ee73866c30_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:678190bb06b817aa80ccfb9a1d1c92564e9d1044cdb1650b299ae719d16bcdee_amd64",
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]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
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"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-must-gather-rhel9@sha256:490a4af0b621d57feaf880a7475e69c42daaa3fb03370e02745874ee73866c30_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:678190bb06b817aa80ccfb9a1d1c92564e9d1044cdb1650b299ae719d16bcdee_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rag-content-rhel9@sha256:1c60236a1acfc0845f4b4fed0fba43ef3e82ee310d8f4ed4d5007e1816a4316c_amd64",
"Red Hat Developer Hub 1.10:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:26626a0359a923036061b3cd91a07da3a487d07006e446f63a090a5033bb1a91_amd64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "systeminformation: systeminformation: Command injection via improper quotation mark sanitization"
}
]
}
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
Loading timeline…
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.
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.