Issued:
2026-02-10
Updated:
2026-02-10

RHSA-2026:2462 - Important: pcs security update

Synopsis

Important: pcs security update

Type/Severity

Security Advisory Important

Topic

An update for pcs is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

Security Fix(es):

  • tornado: Tornado Quadratic DoS via Repeated Header Coalescing (CVE-2025-67725)

  • tornado: Tornado Quadratic DoS via Crafted Multipart Parameters (CVE-2025-67726)

  • lodash: prototype pollution in _.unset and _.omit functions (CVE-2025-13465)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

ProductVersionArch
Red Hat Enterprise Linux High Availability for x86_64 - Extended Update Support Extension8.4x86_64
Red Hat Enterprise Linux High Availability for x86_64 - Advanced Update Support8.4x86_64

Updated Packages

  • pcs-0.10.8-1.el8_4.10.src.rpm
  • pcs-0.10.8-1.el8_4.10.x86_64.rpm
  • pcs-snmp-0.10.8-1.el8_4.10.x86_64.rpm

Fixes

CVEs

References

Additional information