RHSA-2026:97299MediumCVSS 6.5

Red Hat Security Advisory: pcp security, bug fix, and enhancement update

Published
November 10, 2026
Last Modified
November 10, 2026

🔗 CVE IDs covered (2)

CVE-2026-16530 →CVE-2026-16531 →

📋 Description

CVE-2026-16530 — PCP: PCP: Remote denial of service and information leakage CVE-2026-16531 — PCP: PCP: Arbitrary file creation via path traversal in pmproxy logger servlet

🎯 Affected products200

  • Red Hat Enterprise Linux AppStream (v. 10)
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • pcp-0:7.1.5-6.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-0:7.1.5-6.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-0:7.1.5-6.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-0:7.1.5-6.el10.src as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-0:7.1.5-6.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-conf-0:7.1.5-6.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-conf-0:7.1.5-6.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-conf-0:7.1.5-6.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-conf-0:7.1.5-6.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-debuginfo-0:7.1.5-6.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-debuginfo-0:7.1.5-6.el10.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • pcp-debuginfo-0:7.1.5-6.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-debuginfo-0:7.1.5-6.el10.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • pcp-debuginfo-0:7.1.5-6.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-debuginfo-0:7.1.5-6.el10.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • pcp-debuginfo-0:7.1.5-6.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-debuginfo-0:7.1.5-6.el10.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • pcp-debugsource-0:7.1.5-6.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-debugsource-0:7.1.5-6.el10.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • pcp-debugsource-0:7.1.5-6.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-debugsource-0:7.1.5-6.el10.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • pcp-debugsource-0:7.1.5-6.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-debugsource-0:7.1.5-6.el10.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • pcp-debugsource-0:7.1.5-6.el10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-debugsource-0:7.1.5-6.el10.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • pcp-devel-0:7.1.5-6.el10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-devel-0:7.1.5-6.el10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pcp-devel-0:7.1.5-6.el10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • +170 more not shown

✅ 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: To mitigate this issue, restrict network access to the `pmproxy` service on TCP port 44322 using firewall rules. Alternatively, if the `pmproxy` service is not required, it can be disabled to prevent exploitation. Example to disable `pmproxy`: `sudo systemctl stop pmproxy` `sudo systemctl disable pmproxy` Note that disabling `pmproxy` may impact functionality that relies on it. A service reload or restart may be required for changes to take effect. Workaround: To mitigate this issue, restrict network access to TCP port 44322, which is used by the pmproxy service. This can be achieved by configuring a firewall to block incoming connections to this port. Alternatively, if the pmproxy service is not essential for your environment, it can be disabled. To disable the pmproxy service: sudo systemctl stop pmproxy sudo systemctl disable pmproxy Warning: Disabling pmproxy may impact the functionality of Performance Co-Pilot components that rely on it for data collection and logging.

🔗 References (15)