Red Hat Security Advisory: pcs security update
The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fix(es): * tornado-python: Tornado: Denial of Service via large multipart bodies (CVE-2026-31958) * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800) 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 pcs packages for Red Hat Enterprise Linux provide command-line configuration for Pacemaker and Corosync. This advisory addresses two security issues: CVE-2026-31958, a denial of service vulnerability in tornado-python caused by processing large multipart bodies, and CVE-2026-4800, an arbitrary code execution vulnerability in lodash due to untrusted input in template imports. Red Hat has released updated pcs packages (version 0.10.8-1.el8_4.11) for affected Red Hat Enterprise Linux 8.4 High Availability variants to remediate these issues. The advisory classifies the impact as Important and provides references for further details.
Potential Impact
The vulnerabilities include a denial of service condition that can be triggered via large multipart bodies in tornado-python and an arbitrary code execution risk through lodash when processing untrusted template imports. These issues could allow attackers to disrupt service or execute code within the context of the pcs configuration system, potentially impacting system stability and security on affected Red Hat Enterprise Linux 8.4 High Availability systems.
Mitigation Recommendations
Red Hat has released updated pcs packages (pcs-0.10.8-1.el8_4.11) for Red Hat Enterprise Linux High Availability 8.4 under Advanced Update Support and Extended Life Cycle Long Life Add-On. Users should apply these official updates promptly to remediate the vulnerabilities. For detailed update instructions, refer to Red Hat's article at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Red Hat Security Advisory: pcs security update
Description
The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fix(es): * tornado-python: Tornado: Denial of Service via large multipart bodies (CVE-2026-31958) * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800) 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 pcs packages for Red Hat Enterprise Linux provide command-line configuration for Pacemaker and Corosync. This advisory addresses two security issues: CVE-2026-31958, a denial of service vulnerability in tornado-python caused by processing large multipart bodies, and CVE-2026-4800, an arbitrary code execution vulnerability in lodash due to untrusted input in template imports. Red Hat has released updated pcs packages (version 0.10.8-1.el8_4.11) for affected Red Hat Enterprise Linux 8.4 High Availability variants to remediate these issues. The advisory classifies the impact as Important and provides references for further details.
Potential Impact
The vulnerabilities include a denial of service condition that can be triggered via large multipart bodies in tornado-python and an arbitrary code execution risk through lodash when processing untrusted template imports. These issues could allow attackers to disrupt service or execute code within the context of the pcs configuration system, potentially impacting system stability and security on affected Red Hat Enterprise Linux 8.4 High Availability systems.
Mitigation Recommendations
Red Hat has released updated pcs packages (pcs-0.10.8-1.el8_4.11) for Red Hat Enterprise Linux High Availability 8.4 under Advanced Update Support and Extended Life Cycle Long Life Add-On. Users should apply these official updates promptly to remediate the vulnerabilities. For detailed update instructions, refer to Red Hat's article at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:11493
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-31958"]
- Cvss Version
- null
Threat ID: 6a160974e29bf47b5063dae8
Added to database: 05/26/2026, 20:58:28 UTC
Last enriched: 07/26/2026, 00:10:49 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 66
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