Red Hat Security Advisory: resource-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): * 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 and resource-agents packages in Red Hat Enterprise Linux provide scripts for remote power management in cluster environments, allowing failed or unreachable nodes to be forcibly restarted and removed. These packages depend on the pyasn1 library, which is vulnerable to a denial of service via unbounded recursion (CVE-2026-30922). This vulnerability can cause the affected software to crash or become unresponsive. Red Hat has issued security advisories RHSA-2026:13902 and RHSA-2026:13917 providing updated packages that fix this issue.
Potential Impact
Successful exploitation of this vulnerability could result in denial of service conditions on systems running affected versions of Red Hat Enterprise Linux 8 and 9 with the fence-agents or resource-agents packages installed. This could disrupt cluster management operations by preventing proper handling of failed or unreachable nodes.
Mitigation Recommendations
Red Hat has released updated packages for fence-agents and resource-agents that address CVE-2026-30922. Users should apply the security updates as described in Red Hat advisories RHSA-2026:13902 and RHSA-2026:13917. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigation is required beyond applying the official patches.
Red Hat Security Advisory: resource-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): * 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
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The fence-agents and resource-agents packages in Red Hat Enterprise Linux provide scripts for remote power management in cluster environments, allowing failed or unreachable nodes to be forcibly restarted and removed. These packages depend on the pyasn1 library, which is vulnerable to a denial of service via unbounded recursion (CVE-2026-30922). This vulnerability can cause the affected software to crash or become unresponsive. Red Hat has issued security advisories RHSA-2026:13902 and RHSA-2026:13917 providing updated packages that fix this issue.
Potential Impact
Successful exploitation of this vulnerability could result in denial of service conditions on systems running affected versions of Red Hat Enterprise Linux 8 and 9 with the fence-agents or resource-agents packages installed. This could disrupt cluster management operations by preventing proper handling of failed or unreachable nodes.
Mitigation Recommendations
Red Hat has released updated packages for fence-agents and resource-agents that address CVE-2026-30922. Users should apply the security updates as described in Red Hat advisories RHSA-2026:13902 and RHSA-2026:13917. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigation is required beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:20588
- Cve Count
- 1
Threat ID: 6a16097ce29bf47b5064910a
Added to database: 05/26/2026, 20:58:36 UTC
Last enriched: 08/12/2026, 19:48:33 UTC
Last updated: 09/14/2026, 22:01:33 UTC
Views: 72
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