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, which provide command-line configuration for Pacemaker and Corosync utilities in Red Hat Enterprise Linux 8.4 High Availability, have been updated to fix two security issues. CVE-2026-31958 in tornado-python allows denial of service via large multipart bodies. CVE-2026-4800 in lodash allows arbitrary code execution through untrusted input in template imports. Red Hat has released updated pcs packages (version 0.10.8-1.el8_4.11) for affected systems to address these vulnerabilities.
Potential Impact
Successful exploitation of CVE-2026-31958 could cause denial of service conditions in affected systems. CVE-2026-4800 could allow an attacker to execute arbitrary code via untrusted input, posing a high security risk. These vulnerabilities affect Red Hat Enterprise Linux 8.4 High Availability systems, potentially impacting system availability and security.
Mitigation Recommendations
Red Hat has released updated pcs packages (version 0.10.8-1.el8_4.11) that fix these vulnerabilities. Users of Red Hat Enterprise Linux 8.4 High Availability should apply the provided update promptly. Detailed update instructions are available 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, which provide command-line configuration for Pacemaker and Corosync utilities in Red Hat Enterprise Linux 8.4 High Availability, have been updated to fix two security issues. CVE-2026-31958 in tornado-python allows denial of service via large multipart bodies. CVE-2026-4800 in lodash allows arbitrary code execution through untrusted input in template imports. Red Hat has released updated pcs packages (version 0.10.8-1.el8_4.11) for affected systems to address these vulnerabilities.
Potential Impact
Successful exploitation of CVE-2026-31958 could cause denial of service conditions in affected systems. CVE-2026-4800 could allow an attacker to execute arbitrary code via untrusted input, posing a high security risk. These vulnerabilities affect Red Hat Enterprise Linux 8.4 High Availability systems, potentially impacting system availability and security.
Mitigation Recommendations
Red Hat has released updated pcs packages (version 0.10.8-1.el8_4.11) that fix these vulnerabilities. Users of Red Hat Enterprise Linux 8.4 High Availability should apply the provided update promptly. Detailed update instructions are available 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"]
Threat ID: 6a160974e29bf47b5063dae8
Added to database: 05/26/2026, 20:58:28 UTC
Last enriched: 08/10/2026, 20:23:01 UTC
Last updated: 09/12/2026, 10:01:31 UTC
Views: 86
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