Red Hat Security Advisory: pcs security update
Affects Red Hat pcsSource GCVE Database
Not known to be exploited.
Data as of 31 Oct 2026, 20:20 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 1.8% chance of exploitation in 30 days – higher than 78% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 17 Feb 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 31 Oct 2026.
What to do
AI-suggested
Red Hat has released updated pcs packages for Red Hat Enterprise Linux 9.4 Extended Update Support that fix this vulnerability. Users should apply the available update as described in the Red Hat advisory (RHSA-2026:2817) to remediate the issue. No additional mitigation steps are indicated by the vendor.
Description
A prototype pollution vulnerability (CVE-2025-13465) exists in the lodash library functions _.unset and _.omit, affecting the pcs packages used for command-line configuration of Pacemaker and Corosync utilities in Red Hat Enterprise Linux 9.4 Extended Update Support. This vulnerability has been rated as having an important security impact by Red Hat. An update to pcs addressing this issue is available.