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VulnerabilityPublished Updated

CVE-2026-28379: Grafana OSS · Race Condition

Affects Grafana OSSSource CVE Database V5

0

Not known to be exploited · CVSS 6.5 Medium · fixed in 13.0.1+security-01 : update Grafana OSS when convenient.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
GrafanaGrafana OSSAffected
  • >=8.2.0 <=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

If you cannot patch yet, consider restricting Viewer role access to trusted users and monitor for unusual concurrent request patterns that could trigger the crash. Restarting the Grafana server restores service after a crash.

Description

A race condition in Grafana Live allows authenticated users with Viewer role to trigger a server crash by sending concurrent requests that cause a fatal map access error. This results in complete service unavailability requiring restart of the Grafana server.

References

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