RHSA-2026:11454HighCVSS 8.1

Red Hat Security Advisory: pcs security update

Published
April 29, 2026
Last Modified
August 11, 2026

🔗 CVE IDs covered (2)

CVE-2026-31958 →CVE-2026-4800 →

📋 Description

CVE-2026-4800 — lodash: lodash: Arbitrary code execution via untrusted input in template imports CVE-2026-31958 — tornado-python: Tornado: Denial of Service via large multipart bodies

🎯 Affected products18

  • Red Hat Enterprise Linux High Availability E4S (v.9.0)
  • Red Hat Enterprise Linux ResilientStorage E4S (v.9.0)
  • pcs-0:0.11.1-10.el9_0.11.aarch64 as a component of Red Hat Enterprise Linux High Availability E4S (v.9.0)
  • pcs-0:0.11.1-10.el9_0.11.ppc64le as a component of Red Hat Enterprise Linux High Availability E4S (v.9.0)
  • pcs-0:0.11.1-10.el9_0.11.ppc64le as a component of Red Hat Enterprise Linux ResilientStorage E4S (v.9.0)
  • pcs-0:0.11.1-10.el9_0.11.s390x as a component of Red Hat Enterprise Linux High Availability E4S (v.9.0)
  • pcs-0:0.11.1-10.el9_0.11.s390x as a component of Red Hat Enterprise Linux ResilientStorage E4S (v.9.0)
  • pcs-0:0.11.1-10.el9_0.11.src as a component of Red Hat Enterprise Linux High Availability E4S (v.9.0)
  • pcs-0:0.11.1-10.el9_0.11.src as a component of Red Hat Enterprise Linux ResilientStorage E4S (v.9.0)
  • pcs-0:0.11.1-10.el9_0.11.x86_64 as a component of Red Hat Enterprise Linux High Availability E4S (v.9.0)
  • pcs-0:0.11.1-10.el9_0.11.x86_64 as a component of Red Hat Enterprise Linux ResilientStorage E4S (v.9.0)
  • pcs-snmp-0:0.11.1-10.el9_0.11.aarch64 as a component of Red Hat Enterprise Linux High Availability E4S (v.9.0)
  • pcs-snmp-0:0.11.1-10.el9_0.11.ppc64le as a component of Red Hat Enterprise Linux High Availability E4S (v.9.0)
  • pcs-snmp-0:0.11.1-10.el9_0.11.ppc64le as a component of Red Hat Enterprise Linux ResilientStorage E4S (v.9.0)
  • pcs-snmp-0:0.11.1-10.el9_0.11.s390x as a component of Red Hat Enterprise Linux High Availability E4S (v.9.0)
  • pcs-snmp-0:0.11.1-10.el9_0.11.s390x as a component of Red Hat Enterprise Linux ResilientStorage E4S (v.9.0)
  • pcs-snmp-0:0.11.1-10.el9_0.11.x86_64 as a component of Red Hat Enterprise Linux High Availability E4S (v.9.0)
  • pcs-snmp-0:0.11.1-10.el9_0.11.x86_64 as a component of Red Hat Enterprise Linux ResilientStorage E4S (v.9.0)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

🔗 References (5)