Red Hat Security Advisory: fence-agents security update
The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or unreachable nodes to be forcibly restarted and removed from the cluster. Security Fix(es): * pyjwt: PyJWT accepts unknown `crit` header extensions (RFC 7515 ?4.1.11 MUST violation) (CVE-2026-32597) * pyasn1: pyasn1 Vulnerable to Denial of Service via Unbounded Recursion (CVE-2026-30922) 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.
AI Analysis
Technical Summary
The fence-agents packages in Red Hat Enterprise Linux 10.0 Extended Update Support contain two security flaws. CVE-2026-32597 involves PyJWT improperly accepting unknown critical header extensions, violating RFC 7515 section 4.1.11 requirements. CVE-2026-30922 is a denial of service vulnerability in pyasn1 due to unbounded recursion, potentially allowing resource exhaustion. Red Hat has released updated fence-agents packages to fix these issues. The advisory covers multiple architectures including x86_64, s390x, ppc64le, and aarch64. No CVSS scores are provided, but the severity is rated as Important.
Potential Impact
The vulnerabilities could allow attackers to exploit the PyJWT library's improper validation of critical header extensions and cause denial of service via unbounded recursion in pyasn1. This may impact cluster node management by potentially disrupting remote power management operations, leading to forced restarts or removal of nodes. The advisory does not report known exploits in the wild.
Mitigation Recommendations
Red Hat has released updated fence-agents packages for Red Hat Enterprise Linux 10.0 Extended Update Support that address these vulnerabilities. Users should apply the security update as detailed in the Red Hat advisory RHSA-2026:17083 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official update.
Red Hat Security Advisory: fence-agents security update
Description
The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or unreachable nodes to be forcibly restarted and removed from the cluster. Security Fix(es): * pyjwt: PyJWT accepts unknown `crit` header extensions (RFC 7515 ?4.1.11 MUST violation) (CVE-2026-32597) * pyasn1: pyasn1 Vulnerable to Denial of Service via Unbounded Recursion (CVE-2026-30922) 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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The fence-agents packages in Red Hat Enterprise Linux 10.0 Extended Update Support contain two security flaws. CVE-2026-32597 involves PyJWT improperly accepting unknown critical header extensions, violating RFC 7515 section 4.1.11 requirements. CVE-2026-30922 is a denial of service vulnerability in pyasn1 due to unbounded recursion, potentially allowing resource exhaustion. Red Hat has released updated fence-agents packages to fix these issues. The advisory covers multiple architectures including x86_64, s390x, ppc64le, and aarch64. No CVSS scores are provided, but the severity is rated as Important.
Potential Impact
The vulnerabilities could allow attackers to exploit the PyJWT library's improper validation of critical header extensions and cause denial of service via unbounded recursion in pyasn1. This may impact cluster node management by potentially disrupting remote power management operations, leading to forced restarts or removal of nodes. The advisory does not report known exploits in the wild.
Mitigation Recommendations
Red Hat has released updated fence-agents packages for Red Hat Enterprise Linux 10.0 Extended Update Support that address these vulnerabilities. Users should apply the security update as detailed in the Red Hat advisory RHSA-2026:17083 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated 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-2026:17083
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-32597"]
Threat ID: 6a16097de29bf47b5064a2c5
Added to database: 05/26/2026, 20:58:37 UTC
Last enriched: 08/12/2026, 19:45:06 UTC
Last updated: 09/14/2026, 22:01:33 UTC
Views: 86
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