Red Hat Security Advisory: grafana-pcp security update
Affects Red Hat grafana-pcpSource GCVE Database
Not known to be exploited · CVSS 8.7 High : upgrade Red Hat grafana-pcp to 1.20.2 soon.
Data as of 12 Nov 2026, 08:06 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 4.0 | 8.7 |
|---|
- Patch
- Available – fixed in 1.20.2
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
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), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Upgrade compress to 1.20.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| klauspostcompress | Affected
| Fixed in
|
AI-suggested
Red Hat has released an updated package for grafana-pcp (version 5.1.1-17.el9_9.4) for Red Hat Enterprise Linux 9 on multiple architectures. Applying this official update will remediate the vulnerability. Refer to Red Hat's advisory and update instructions at https://access.redhat.com/articles/11258 for detailed guidance.
Description
A security vulnerability (CVE-2026-116591) affecting the Grafana plugin for Performance Co-Pilot in Red Hat Enterprise Linux 9 allows denial of service via crafted zstd compressed input. This issue is related to the klauspost/compress library used for zstd compression. Red Hat has issued an important security update to address this vulnerability.