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 27 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 30 Oct 2026.
What to do
AI-suggested
Red Hat has released updated pcs packages that fix this vulnerability. Users should apply the security update RHSA-2026:10713 promptly to remediate the issue. Detailed update instructions are available at Red Hat's advisory page (https://access.redhat.com/articles/11258). No additional mitigation steps are indicated beyond applying the official patch.
Description
A security vulnerability (CVE-2026-4800) affecting the pcs packages used in Red Hat Enterprise Linux High Availability has been addressed. The issue involves arbitrary code execution via untrusted input in lodash template imports. Red Hat has released an important security update for pcs to fix this vulnerability in multiple Red Hat Enterprise Linux High Availability variants. The advisory references Red Hat Enterprise Linux 10 and its Extended Update Support versions. No CVSS score is provided, but the severity is rated as high by Red Hat.