Red Hat Security Advisory: pcs security update
Affects Red Hat pcsSource GCVE Database
Not known to be exploited.
Data as of 30 Oct 2026, 11:52 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 2.8% chance of exploitation in 30 days – higher than 86% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 29 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
Public exploit code: GitHub proofs of concept
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 24 Oct 2026.
What to do
AI-suggested
Red Hat has released updated pcs packages for Red Hat Enterprise Linux 9.2 that fix CVE-2026-4800. Users should apply the official update as described in the Red Hat advisory (RHSA-2026:11469) to remediate this vulnerability. The advisory provides detailed instructions and package links for multiple architectures. No additional mitigation steps are required beyond applying the official patch.
Description
A security update for the pcs package in Red Hat Enterprise Linux 9.2 addresses a vulnerability in lodash (CVE-2026-4800) that allows arbitrary code execution via untrusted input in template imports. The pcs package is a command-line configuration tool for Pacemaker and Corosync utilities. Red Hat has rated this update as important and has released fixed packages for multiple architectures. The advisory provides instructions for applying the update.