RHSA-2026:28573

Vulnerability from csaf_redhat - Published: 2026-06-23 21:53 - Updated: 2026-09-24 18:02
Summary
Red Hat Security Advisory: Red Hat Offline Knowledge Portal security and content update
Severity
Important
Notes
Topic: Red Hat Offline Knowledge Portal security fixes & content update
Details: This Red Hat Offline Knowledge Portal fixes several Solr-related CVEs. It also includes content updates as of June 16 2026.
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.
CVE-2026-5795

A flaw was found in Eclipse Jetty. The `JASPIAuthenticator` class is responsible for handling authentication checks. During these checks, the class sets two ThreadLocal variables to store authentication state. Under certain conditions, the authentication process can return early without properly clearing the ThreadLocal variables, allowing a subsequent request to inherit the un-cleared ThreadLocal values. This issue can cause broken access control, authentication bypass, privilege escalation and data breaches.

7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-226 - Sensitive Information in Resource Not Removed Before Reuse
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Offline Knowledge Portal 1.2.13:registry.redhat.io/offline-knowledge-portal/rhokp-rhel9@sha256:9620b543dab8aa6e7a2f372890512c885c4beb6098d61fc5dd68e15cb0e2cc22_arm64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Offline Knowledge Portal 1.2.13:registry.redhat.io/offline-knowledge-portal/rhokp-rhel9@sha256:c0b2c8c0cf4ff8340aef1ce4e92fbf0dee4fc0b88a0c17659ad018f2fc21513a_amd64 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-44249

A flaw was found in netty-handler, a component of the Netty network application framework. A remote attacker can exploit an incorrect masking operation in the IpSubnetFilterRule.compareTo() function to bypass configured IPv6 subnet rules. This allows valid public IP addresses to circumvent intended network restrictions, potentially leading to unauthorized access or exposure of services.

8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-1287 - Improper Validation of Specified Type of Input
Affected products
Fixed 2 products, the same list as for CVE-2026-5795
Threats
Impact Important
CVE-2026-45292

A flaw was found in OpenTelemetry Java, specifically within the baggage propagation implementation of opentelemetry-api and opentelemetry-extension-trace-propagators. A remote attacker can exploit this vulnerability by sending oversized baggage, which leads to unbounded memory allocation and high CPU consumption. This can result in a Denial of Service (DoS) for the affected service. Furthermore, because baggage is automatically re-injected into outgoing requests, the impact can spread to other downstream services.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Fixed 2 products, the same list as for CVE-2026-5795
Threats
Impact Important
CVE-2026-45416

A flaw was found in Netty, a network application framework. A remote attacker can exploit this vulnerability by sending a crafted TLS (Transport Layer Security) ClientHello message. This can lead to an eager allocation of a large memory buffer, causing a Denial of Service (DoS) due to excessive memory consumption. The issue occurs in the `SslClientHelloHandler.decode()` method when processing the TLS handshake length.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Fixed 2 products, the same list as for CVE-2026-5795
Threats
Impact Important
CVE-2026-50010

A flaw was found in Netty, a network application framework. This vulnerability allows a remote attacker to bypass hostname verification due to improper handling of user-supplied trust managers. When a client is configured with a plain X.509 Trust Manager (X509TrustManager), it fails to perform necessary hostname checks, enabling an attacker to impersonate a legitimate server. This could lead to sensitive information disclosure or man-in-the-middle attacks.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-347 - Improper Verification of Cryptographic Signature
Affected products
Fixed 2 products, the same list as for CVE-2026-5795
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:28573 self
https://access.redhat.com/products/red-hat-offlin… external
https://access.redhat.com/security/cve/CVE-2026-44249 external
https://access.redhat.com/security/cve/CVE-2026-45292 external
https://access.redhat.com/security/cve/CVE-2026-45416 external
https://access.redhat.com/security/cve/CVE-2026-50010 external
https://access.redhat.com/security/cve/CVE-2026-5795 external
https://access.redhat.com/security/updates/classi… external
https://docs.redhat.com/en/documentation/red_hat_… external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-5795 self
https://bugzilla.redhat.com/show_bug.cgi?id=2456519 external
https://www.cve.org/CVERecord?id=CVE-2026-5795 external
https://nvd.nist.gov/vuln/detail/CVE-2026-5795 external
https://github.com/advisories/GHSA-gc59-r5jq-98qw external
https://access.redhat.com/security/cve/CVE-2026-44249 self
https://bugzilla.redhat.com/show_bug.cgi?id=2488081 external
https://www.cve.org/CVERecord?id=CVE-2026-44249 external
https://nvd.nist.gov/vuln/detail/CVE-2026-44249 external
https://github.com/netty/netty/releases/tag/netty… external
https://github.com/netty/netty/releases/tag/netty… external
https://github.com/netty/netty/security/advisorie… external
https://access.redhat.com/security/cve/CVE-2026-45292 self
https://bugzilla.redhat.com/show_bug.cgi?id=2482785 external
https://www.cve.org/CVERecord?id=CVE-2026-45292 external
https://nvd.nist.gov/vuln/detail/CVE-2026-45292 external
https://github.com/open-telemetry/opentelemetry-j… external
https://github.com/open-telemetry/opentelemetry-j… external
https://github.com/open-telemetry/opentelemetry-j… external
https://github.com/open-telemetry/opentelemetry-j… external
https://access.redhat.com/security/cve/CVE-2026-45416 self
https://bugzilla.redhat.com/show_bug.cgi?id=2488391 external
https://www.cve.org/CVERecord?id=CVE-2026-45416 external
https://nvd.nist.gov/vuln/detail/CVE-2026-45416 external
https://github.com/netty/netty/security/advisorie… external
https://access.redhat.com/security/cve/CVE-2026-50010 self
https://bugzilla.redhat.com/show_bug.cgi?id=2488429 external
https://www.cve.org/CVERecord?id=CVE-2026-50010 external
https://nvd.nist.gov/vuln/detail/CVE-2026-50010 external
https://github.com/netty/netty/security/advisorie… external
To clipboard 

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            "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",
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      "threats": [
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          "category": "impact",
          "details": "Important"
        }
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      "title": "org.eclipse.jetty.ee10/jetty-ee10: early return from the JASPIAuthenticator class without clearing ThreadLocal variables"
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      "cwe": {
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          "text": "A flaw was found in netty-handler, a component of the Netty network application framework. A remote attacker can exploit an incorrect masking operation in the IpSubnetFilterRule.compareTo() function to bypass configured IPv6 subnet rules. This allows valid public IP addresses to circumvent intended network restrictions, potentially leading to unauthorized access or exposure of services.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "netty-handler: netty-handler: IPv6 subnet rule bypass due to incorrect masking operation",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability in netty-handler is rated as Important because a remote attacker can bypass configured IPv6 subnet filtering rules. This flaw, stemming from an incorrect masking operation, could allow unauthorized access to or exposure of services that are intended to be network-restricted within Red Hat products utilizing 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"
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      "product_status": {
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    },
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          "title": "Vulnerability description"
        },
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          "category": "summary",
          "text": "opentelemetry-java: opentelemetry-api: opentelemetry-extension-trace-propagators: OpenTelemetry Java: Denial of Service due to unbounded memory allocation when parsing oversized baggage",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is an Important denial of service vulnerability in OpenTelemetry Java\u0027s baggage propagation, affecting Red Hat products that use OpenTelemetry for telemetry. A remote attacker can exploit this by sending excessively large baggage, leading to uncontrolled memory and CPU usage. The vulnerability\u0027s impact can extend to downstream services due to automatic re-injection of baggage into outgoing requests.",
          "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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      "product_status": {
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          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-45292",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45292"
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          "category": "other",
          "text": "This vulnerability in Netty is rated as Important. It allows a remote attacker to trigger a denial of service by sending a specially crafted TLS ClientHello message. The flaw arises from an eager, unbounded memory allocation during the TLS handshake, particularly when default configurations disable the maximum client hello length guard, leading to excessive resource consumption in affected Red Hat products utilizing Netty.",
          "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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          "title": "Vulnerability description"
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          "title": "Vulnerability summary"
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          "text": "This is an Important flaw in Netty that affects Red Hat products utilizing the `netty-handler` component, including various Red Hat AMQ, Enterprise Application Platform, and OpenShift offerings. The vulnerability arises when a Netty client is configured with a plain X.509 Trust Manager, leading to a bypass of hostname verification. This oversight allows a remote attacker to perform man-in-the-middle attacks by impersonating a legitimate server, potentially compromising sensitive data.",
          "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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        }
      ],
      "release_date": "2026-06-12T14:50:43.151000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-23T21:53:14+00:00",
          "details": "The container image provided by this update can be downloaded from the Red Hat container registry at registry.redhat.io using the \"podman pull\" command.",
          "product_ids": [
            "Red Hat Offline Knowledge Portal 1.2.13:registry.redhat.io/offline-knowledge-portal/rhokp-rhel9@sha256:9620b543dab8aa6e7a2f372890512c885c4beb6098d61fc5dd68e15cb0e2cc22_arm64",
            "Red Hat Offline Knowledge Portal 1.2.13:registry.redhat.io/offline-knowledge-portal/rhokp-rhel9@sha256:c0b2c8c0cf4ff8340aef1ce4e92fbf0dee4fc0b88a0c17659ad018f2fc21513a_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:28573"
        },
        {
          "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 Offline Knowledge Portal 1.2.13:registry.redhat.io/offline-knowledge-portal/rhokp-rhel9@sha256:9620b543dab8aa6e7a2f372890512c885c4beb6098d61fc5dd68e15cb0e2cc22_arm64",
            "Red Hat Offline Knowledge Portal 1.2.13:registry.redhat.io/offline-knowledge-portal/rhokp-rhel9@sha256:c0b2c8c0cf4ff8340aef1ce4e92fbf0dee4fc0b88a0c17659ad018f2fc21513a_amd64"
          ]
        }
      ],
      "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 Offline Knowledge Portal 1.2.13:registry.redhat.io/offline-knowledge-portal/rhokp-rhel9@sha256:9620b543dab8aa6e7a2f372890512c885c4beb6098d61fc5dd68e15cb0e2cc22_arm64",
            "Red Hat Offline Knowledge Portal 1.2.13:registry.redhat.io/offline-knowledge-portal/rhokp-rhel9@sha256:c0b2c8c0cf4ff8340aef1ce4e92fbf0dee4fc0b88a0c17659ad018f2fc21513a_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass"
    }
  ]
}



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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.



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.