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CVE-2026-33376VulnerabilityPublished Updated

Red Hat Security Advisory: grafana security, bug fix, and enhancement update

Affects Red Hat grafana security,Source GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-33376· High 7.4

Not known to be exploited · CVSS 7.4 High · fixed in Red Hat package updates : patch Red Hat grafana security, soon.

Data as of 6 Nov 2026, 02:35 UTC

CVSS 3.1 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 13.0.1+security-01, 12.4.3+security-02, 12.3.6+security-04 +2
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 May 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 OSSAffected
  • >=9.4.0 <=11.6.14
  • >=11.6.14 <11.6.14+security-04
  • >=12.0.0 <=12.2.8
  • >=12.2.8 <12.2.8+security-04
  • >=12.3.0 <=12.3.6
  • >=12.3.6 <12.3.6+security-04
  • >=12.4.0 <=12.4.3
  • >=12.4.3 <12.4.3+security-02
  • >=13.0.0 <=13.0.1
  • >=13.0.1 <13.0.1+security-01
Fixed in
  • 13.0.1+security-01
  • 12.4.3+security-02
  • 12.3.6+security-04
  • 12.2.8+security-04
  • 11.6.14+security-04

AI-suggested

Red Hat has released updated Grafana packages for Red Hat Enterprise Linux 9 and its variants that address these vulnerabilities. Users should apply these official updates as per Red Hat's guidance at https://access.redhat.com/articles/11258 to remediate the issues. No additional mitigation steps are indicated beyond applying the provided patches.

Description

Red Hat has issued a security advisory for Grafana addressing two vulnerabilities: a privilege escalation via dashboard overwrite (CVE-2026-33377) and unauthorized access due to an incorrect IPv6 allow-list default in the Grafana Auth Proxy (CVE-2026-33376). The update also includes bug fixes to prevent unbounded memory growth and to limit request body size. The advisory rates the security impact as moderate and provides updated packages for Red Hat Enterprise Linux 9 and its variants.

References

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