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 8.8 include fixes for two security vulnerabilities. CVE-2026-31958 in tornado-python allows denial of service through large multipart bodies. CVE-2026-4800 in lodash permits arbitrary code execution via untrusted input in template imports. Red Hat has released updated pcs packages (version 0.10.15-4.el8_8.11) for affected High Availability variants of RHEL 8.8 to address these issues. The advisory references Red Hat's errata RHSA-2026:11495 and provides links for applying the update.
Potential Impact
Successful exploitation of CVE-2026-31958 could cause denial of service conditions in applications using tornado-python by processing large multipart bodies. CVE-2026-4800 allows an attacker to execute arbitrary code by supplying untrusted input to lodash template imports, potentially leading to full system compromise. These vulnerabilities affect Red Hat Enterprise Linux High Availability 8.8 variants and could impact system availability and security if left unpatched.
Mitigation Recommendations
Red Hat has released an official security update for pcs packages in Red Hat Enterprise Linux High Availability 8.8 variants that addresses these vulnerabilities. Users should apply the update pcs-0.10.15-4.el8_8.11 or later as provided by Red Hat to remediate these issues. Detailed update instructions are available at https://access.redhat.com/articles/11258. No additional mitigations 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 8.8 include fixes for two security vulnerabilities. CVE-2026-31958 in tornado-python allows denial of service through large multipart bodies. CVE-2026-4800 in lodash permits arbitrary code execution via untrusted input in template imports. Red Hat has released updated pcs packages (version 0.10.15-4.el8_8.11) for affected High Availability variants of RHEL 8.8 to address these issues. The advisory references Red Hat's errata RHSA-2026:11495 and provides links for applying the update.
Potential Impact
Successful exploitation of CVE-2026-31958 could cause denial of service conditions in applications using tornado-python by processing large multipart bodies. CVE-2026-4800 allows an attacker to execute arbitrary code by supplying untrusted input to lodash template imports, potentially leading to full system compromise. These vulnerabilities affect Red Hat Enterprise Linux High Availability 8.8 variants and could impact system availability and security if left unpatched.
Mitigation Recommendations
Red Hat has released an official security update for pcs packages in Red Hat Enterprise Linux High Availability 8.8 variants that addresses these vulnerabilities. Users should apply the update pcs-0.10.15-4.el8_8.11 or later as provided by Red Hat to remediate these issues. Detailed update instructions are available at https://access.redhat.com/articles/11258. No additional mitigations 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-2026:11495
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-31958"]
- Cvss Version
- null
Threat ID: 6a160974e29bf47b5063dada
Added to database: 05/26/2026, 20:58:28 UTC
Last enriched: 07/26/2026, 00:10:31 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 63
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