Red Hat Security Advisory: Red Hat Ansible Automation Platform Execution Environments Container Release 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): * jinja2: Jinja sandbox breakout through attr filter selecting format method (CVE-2025-27516) 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
CVE-2025-27516 is a vulnerability in the Jinja2 templating engine used by fence-agents packages in Red Hat products. It allows a sandbox breakout through the attr filter when selecting the format method, potentially enabling code execution beyond the intended sandbox restrictions. The fence-agents packages manage remote power control for cluster nodes, and this vulnerability could impact automation and cluster management environments. Red Hat has issued security advisories RHSA-2025:2664 and RHSA-2025:2688 detailing the issue and providing updated packages to fix the vulnerability. Affected products include Red Hat Enterprise Linux 9.4 Extended Update Support and Red Hat Ansible Automation Platform Execution Environments across multiple CPU architectures (x86_64, ppc64le, aarch64, s390x). No active exploitation has been reported to date.
Potential Impact
The vulnerability allows a Jinja2 sandbox breakout in the fence-agents packages, which could lead to unintended code execution within the context of automation and cluster management scripts. This may allow an attacker with access to the affected system to bypass sandbox restrictions and execute arbitrary code. The impact is rated as high severity by Red Hat. No known exploits in the wild have been reported, but the potential for elevated privileges or disruption in cluster management exists if exploited.
Mitigation Recommendations
Red Hat has released official security updates addressing CVE-2025-27516 for affected fence-agents packages and related components. Users should apply these updates promptly to remediate the vulnerability. Detailed instructions and updated packages are available in Red Hat advisories RHSA-2025:2664 and RHSA-2025:2688. No additional mitigation steps are required beyond applying the official patches.
Red Hat Security Advisory: Red Hat Ansible Automation Platform Execution Environments Container Release 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): * jinja2: Jinja sandbox breakout through attr filter selecting format method (CVE-2025-27516) 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
CVE-2025-27516 is a vulnerability in the Jinja2 templating engine used by fence-agents packages in Red Hat products. It allows a sandbox breakout through the attr filter when selecting the format method, potentially enabling code execution beyond the intended sandbox restrictions. The fence-agents packages manage remote power control for cluster nodes, and this vulnerability could impact automation and cluster management environments. Red Hat has issued security advisories RHSA-2025:2664 and RHSA-2025:2688 detailing the issue and providing updated packages to fix the vulnerability. Affected products include Red Hat Enterprise Linux 9.4 Extended Update Support and Red Hat Ansible Automation Platform Execution Environments across multiple CPU architectures (x86_64, ppc64le, aarch64, s390x). No active exploitation has been reported to date.
Potential Impact
The vulnerability allows a Jinja2 sandbox breakout in the fence-agents packages, which could lead to unintended code execution within the context of automation and cluster management scripts. This may allow an attacker with access to the affected system to bypass sandbox restrictions and execute arbitrary code. The impact is rated as high severity by Red Hat. No known exploits in the wild have been reported, but the potential for elevated privileges or disruption in cluster management exists if exploited.
Mitigation Recommendations
Red Hat has released official security updates addressing CVE-2025-27516 for affected fence-agents packages and related components. Users should apply these updates promptly to remediate the vulnerability. Detailed instructions and updated packages are available in Red Hat advisories RHSA-2025:2664 and RHSA-2025:2688. No additional mitigation steps are 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-2025:4408
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a1f4e89e29bf47b5008378d
Added to database: 06/02/2026, 21:43:37 UTC
Last enriched: 08/14/2026, 22:55:27 UTC
Last updated: 08/24/2026, 13:51:42 UTC
Views: 153
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.