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CVE-2026-21721VulnerabilityPublished Updated

Red Hat Security Advisory: grafana security update

Affects Red Hat grafanaSource GCVE Database

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Authoritative record:CVE-2026-21721· High 8.1

Not known to be exploited · CVSS 8.1 High · fixed in Red Hat package updates : patch Red Hat grafana soon.

Data as of 5 Nov 2026, 14:51 UTC

CVSS 3.1 base score
8.1High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 12.3.1, 12.2.3, 12.1.5 +2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Grafanagrafana/grafanaAffected
  • >=12.3.0 <12.3.1
Fixed in
  • 12.3.1
Grafanagrafana/grafanaAffected
  • >=12.2.0 <12.2.3
Fixed in
  • 12.2.3
Grafanagrafana/grafanaAffected
  • >=12.1.0 <12.1.5
Fixed in
  • 12.1.5
Grafanagrafana/grafanaAffected
  • >=12.0.0 <12.0.8
Fixed in
  • 12.0.8
Grafanagrafana/grafanaAffected
  • >=10.2.0 <11.6.9
Fixed in
  • 11.6.9
Grafanagrafana/grafana-enterpriseAffected
  • >=10.2.0 <11.6.9
Fixed in
  • 11.6.9

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released updated Grafana packages (version 10.2.6-20.el10_0) for Red Hat Enterprise Linux 10.0 Extended Update Support that fix this vulnerability. Users should apply these updates promptly following Red Hat's guidance at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official update.

Description

A security vulnerability (CVE-2026-21721) in Grafana allows bypassing dashboard permission scopes, enabling privilege escalation across dashboards. This issue affects Grafana packages in Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat has issued an important security update to address this flaw.

References

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