RHSA-2026:84798 — Security Advisory
Red Hat Security Advisory: pcs security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · October 19, 2026
Updated · November 5, 2026
Topic
An update for pcs is now available for Red Hat Enterprise Linux 8.
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):
-
python-tornado: Tornado: Denial of Service via excessive URL-encoded body fields (CVE-2026-82397)
-
python-tornado: Tornado before 6.4.1 HTTP Request Smuggling via Transfer-Encoding (CVE-2024-14029)
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.