Red Hat Security Advisory: fence-agents security update
Red Hat has issued a security advisory for fence-agents packages used in Red Hat Enterprise Linux 10. The update addresses two vulnerabilities: CVE-2026-32597, where PyJWT improperly accepts unknown critical header extensions violating RFC 7515 requirements, and CVE-2026-30922, a denial of service vulnerability in pyasn1 caused by unbounded recursion. These vulnerabilities affect remote power management scripts used to handle cluster device nodes. The advisory rates the impact as Important and provides updated packages to remediate the issues.
AI Analysis
Technical Summary
The fence-agents packages in Red Hat Enterprise Linux 10 provide scripts for remote power management of cluster devices, enabling forced restart and removal of failed or unreachable nodes. Two security issues are fixed: CVE-2026-32597 in PyJWT, which accepts unknown critical header extensions violating RFC 7515 Section 4.1.11, and CVE-2026-30922 in pyasn1, which is vulnerable to denial of service via unbounded recursion. These flaws could impact cluster stability and security. Red Hat has released updated fence-agents packages to address these vulnerabilities.
Potential Impact
The vulnerabilities could allow an attacker to cause denial of service conditions in cluster management by exploiting unbounded recursion in pyasn1 or by bypassing critical header validation in PyJWT, potentially affecting cluster node management and stability. The advisory classifies the security impact as Important, indicating a significant but not critical risk to affected systems.
Mitigation Recommendations
Red Hat has released updated fence-agents packages for Red Hat Enterprise Linux 10 that address these vulnerabilities. Users should apply the security update as detailed in the Red Hat advisory RHSA-2026:13916 to remediate the issues. Patch status is confirmed by the vendor advisory. No additional mitigations are specified beyond applying the official update.
Red Hat Security Advisory: fence-agents security update
Description
Red Hat has issued a security advisory for fence-agents packages used in Red Hat Enterprise Linux 10. The update addresses two vulnerabilities: CVE-2026-32597, where PyJWT improperly accepts unknown critical header extensions violating RFC 7515 requirements, and CVE-2026-30922, a denial of service vulnerability in pyasn1 caused by unbounded recursion. These vulnerabilities affect remote power management scripts used to handle cluster device nodes. The advisory rates the impact as Important and provides updated packages to remediate the issues.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The fence-agents packages in Red Hat Enterprise Linux 10 provide scripts for remote power management of cluster devices, enabling forced restart and removal of failed or unreachable nodes. Two security issues are fixed: CVE-2026-32597 in PyJWT, which accepts unknown critical header extensions violating RFC 7515 Section 4.1.11, and CVE-2026-30922 in pyasn1, which is vulnerable to denial of service via unbounded recursion. These flaws could impact cluster stability and security. Red Hat has released updated fence-agents packages to address these vulnerabilities.
Potential Impact
The vulnerabilities could allow an attacker to cause denial of service conditions in cluster management by exploiting unbounded recursion in pyasn1 or by bypassing critical header validation in PyJWT, potentially affecting cluster node management and stability. The advisory classifies the security impact as Important, indicating a significant but not critical risk to affected systems.
Mitigation Recommendations
Red Hat has released updated fence-agents packages for Red Hat Enterprise Linux 10 that address these vulnerabilities. Users should apply the security update as detailed in the Red Hat advisory RHSA-2026:13916 to remediate the issues. Patch status is confirmed by the vendor advisory. No additional mitigations are specified beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:13916
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-32597"]
- Cvss Version
- null
Threat ID: 6a16097fe29bf47b5064b7c6
Added to database: 05/26/2026, 20:58:39 UTC
Last enriched: 07/19/2026, 22:53:58 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 84
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