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 provide command-line configuration for Pacemaker and Corosync. Two security vulnerabilities are addressed in this update: CVE-2026-31958, a denial of service vulnerability in tornado-python triggered by large multipart bodies, and CVE-2026-4800, an arbitrary code execution vulnerability in lodash due to untrusted input in template imports. The advisory references updated pcs packages for affected Red Hat Enterprise Linux 8.8 variants, including High Availability for Power LE and x86_64 architectures. The update is rated as Important by Red Hat Product Security.
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 could allow an attacker to execute arbitrary code via untrusted input in lodash template imports. These vulnerabilities affect systems running the affected versions of pcs on Red Hat Enterprise Linux 8.8, potentially impacting system availability and security.
Mitigation Recommendations
Red Hat has released updated pcs packages for Red Hat Enterprise Linux 8.8 that address these vulnerabilities. Users should apply the provided updates (pcs-0.10.15-4.el8_8.11) from the Red Hat repositories as detailed in the advisory RHSA-2026:11495. No additional mitigation steps are indicated beyond applying the official update.
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 provide command-line configuration for Pacemaker and Corosync. Two security vulnerabilities are addressed in this update: CVE-2026-31958, a denial of service vulnerability in tornado-python triggered by large multipart bodies, and CVE-2026-4800, an arbitrary code execution vulnerability in lodash due to untrusted input in template imports. The advisory references updated pcs packages for affected Red Hat Enterprise Linux 8.8 variants, including High Availability for Power LE and x86_64 architectures. The update is rated as Important by Red Hat Product Security.
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 could allow an attacker to execute arbitrary code via untrusted input in lodash template imports. These vulnerabilities affect systems running the affected versions of pcs on Red Hat Enterprise Linux 8.8, potentially impacting system availability and security.
Mitigation Recommendations
Red Hat has released updated pcs packages for Red Hat Enterprise Linux 8.8 that address these vulnerabilities. Users should apply the provided updates (pcs-0.10.15-4.el8_8.11) from the Red Hat repositories as detailed in the advisory RHSA-2026:11495. No additional mitigation steps are indicated beyond applying the official update.
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"]
Threat ID: 6a160974e29bf47b5063dada
Added to database: 05/26/2026, 20:58:28 UTC
Last enriched: 08/10/2026, 20:22:35 UTC
Last updated: 09/13/2026, 10:01:31 UTC
Views: 87
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