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 11 Nov 2026, 15:33 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 updated grafana-pcp packages for Red Hat Enterprise Linux 10 that fix this vulnerability. Users should apply the security update as described in the Red Hat advisory RHSA-2026:98620 to remediate the issue. No other mitigation or workaround is indicated.
Description
A security update for the Grafana plugin for Performance Co-Pilot addresses a denial of service vulnerability (CVE-2026-116591) in the klauspost/compress zstd compression library. The vulnerability allows denial of service via crafted zstd compressed input. This issue affects Red Hat Enterprise Linux 10 across multiple architectures. Red Hat has released updated packages to fix this vulnerability.