Red Hat Security Advisory: fence-agents security update
Red Hat has issued a security advisory for the fence-agents packages used in Red Hat Enterprise Linux 9. 0 and related variants. The update addresses two vulnerabilities in the Jinja2 template engine (CVE-2024-56201 and CVE-2024-56326) that allow sandbox breakout via malicious filenames or indirect references to the format method. These vulnerabilities could potentially allow an attacker to escape the Jinja2 sandbox environment. The advisory rates the security impact as Important and provides updated packages to remediate the issues. No known exploits in the wild have been reported at this time.
AI Analysis
Technical Summary
The fence-agents packages in Red Hat Enterprise Linux 9.0 and related products include scripts for remote power management in cluster environments. Two security vulnerabilities in the Jinja2 template engine used by these packages (CVE-2024-56201 and CVE-2024-56326) allow sandbox breakout through malicious filenames or indirect references to the format method. These sandbox breakouts could enable an attacker to execute unauthorized code outside the intended restricted environment. Red Hat has released updated fence-agents packages to fix these issues. The advisory references Red Hat's official errata RHSA-2025:0345 for details and remediation instructions.
Potential Impact
Successful exploitation of these vulnerabilities could allow an attacker to escape the Jinja2 sandbox, potentially leading to unauthorized code execution within the context of the fence-agents scripts. Since fence-agents handle critical cluster node management functions, such exploitation could impact cluster stability and security. However, no known exploits in the wild have been reported, and the overall security impact is rated as Important by Red Hat.
Mitigation Recommendations
Red Hat has released updated fence-agents packages that address these vulnerabilities. Users of affected Red Hat Enterprise Linux 9.0 and related products should apply the security update as described in Red Hat advisory RHSA-2025:0345 and the referenced update article (https://access.redhat.com/articles/11258). Applying these official patches is the recommended remediation. There is no indication that additional mitigations are required beyond installing the updated packages.
Red Hat Security Advisory: fence-agents security update
Description
Red Hat has issued a security advisory for the fence-agents packages used in Red Hat Enterprise Linux 9. 0 and related variants. The update addresses two vulnerabilities in the Jinja2 template engine (CVE-2024-56201 and CVE-2024-56326) that allow sandbox breakout via malicious filenames or indirect references to the format method. These vulnerabilities could potentially allow an attacker to escape the Jinja2 sandbox environment. The advisory rates the security impact as Important and provides updated packages to remediate the issues. No known exploits in the wild have been reported at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The fence-agents packages in Red Hat Enterprise Linux 9.0 and related products include scripts for remote power management in cluster environments. Two security vulnerabilities in the Jinja2 template engine used by these packages (CVE-2024-56201 and CVE-2024-56326) allow sandbox breakout through malicious filenames or indirect references to the format method. These sandbox breakouts could enable an attacker to execute unauthorized code outside the intended restricted environment. Red Hat has released updated fence-agents packages to fix these issues. The advisory references Red Hat's official errata RHSA-2025:0345 for details and remediation instructions.
Potential Impact
Successful exploitation of these vulnerabilities could allow an attacker to escape the Jinja2 sandbox, potentially leading to unauthorized code execution within the context of the fence-agents scripts. Since fence-agents handle critical cluster node management functions, such exploitation could impact cluster stability and security. However, no known exploits in the wild have been reported, and the overall security impact is rated as Important by Red Hat.
Mitigation Recommendations
Red Hat has released updated fence-agents packages that address these vulnerabilities. Users of affected Red Hat Enterprise Linux 9.0 and related products should apply the security update as described in Red Hat advisory RHSA-2025:0345 and the referenced update article (https://access.redhat.com/articles/11258). Applying these official patches is the recommended remediation. There is no indication that additional mitigations are required beyond installing the updated packages.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:0345
- Cve Count
- 2
- Additional Cves
- ["CVE-2024-56326"]
- Cvss Version
- null
Threat ID: 6a1f4e92e29bf47b50085e68
Added to database: 6/2/2026, 9:43:46 PM
Last enriched: 6/2/2026, 10:21:43 PM
Last updated: 6/3/2026, 5:02:13 AM
Views: 2
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