Red Hat Security Advisory: grafana security update
Affects Red Hat grafanaSource GCVE Database
Not known to be exploited · CVSS 7.5 High.
Data as of 5 Nov 2026, 23:24 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 22 Jun 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 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GrafanaGrafana Enterprise | Affected
| Fixed in– |
| GrafanaGrafana OSS | Affected
| Fixed in– |
AI-suggested
A security update addressing this vulnerability is available from Red Hat. Users should apply the updated Grafana packages (version 10.2.6-23.el9_8.1) for Red Hat Enterprise Linux 9 as described in Red Hat advisory RHSA-2026:54184 and the referenced article https://access.redhat.com/articles/11258. Applying this update mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
Description
A denial of service vulnerability (CVE-2026-42127) exists in Grafana distributed with Red Hat Enterprise Linux 9. The issue is caused by excessive memory allocation triggered by large JSON payloads. Red Hat has released a security update to address this vulnerability. The update is rated as important by Red Hat Product Security. No known exploits are reported in the wild.