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VulnerabilityPublished

CVE-2026-102589: Grafana OSS · Origin Validation Error

Affects Grafana OSSSource CVE Database V5

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Not known to be exploited · CVSS 7.1 High.

Data as of 11 Nov 2026, 15:34 UTC

CVSS 3.1 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GRAFANA)CVSS 3.17.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 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 11 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
GrafanaGrafana OSSAffected
  • >=9.5.0 <=12.3.11
  • >=12.4.0 <=12.4.14
  • >=13.0.0 <=13.0.12
  • >=13.1.0 <=13.1.9
  • >=13.2.0 <=13.2.5
  • >=13.3.0 <=13.3.0
Fixed in–
GrafanaGrafana EnterpriseAffected
  • >=9.5.0 <=12.3.11
  • >=12.4.0 <=12.4.14
  • >=13.0.0 <=13.0.12
  • >=13.1.0 <=13.1.9
  • >=13.2.0 <=13.2.5
  • >=13.3.0 <=13.3.0
Fixed in–

AI-suggested

Since this is a vulnerability in the renderer_token sharing mechanism, administrators should avoid sharing renderer_token values across independent Grafana instances. Review and disable the renderAuthJWT feature toggle if cross-instance user impersonation risk is unacceptable. Monitor vendor advisories for official patches or updates addressing this issue.

Description

CVE-2026-102589 is a high-severity vulnerability in Grafana OSS affecting versions from 9.5.0 through 13.3.0 (specific subversions). It arises when multiple independent Grafana instances share the same renderer_token for image rendering. This causes an origin validation error where a renderer key issued by one instance is accepted by others, allowing a user on one instance to impersonate a user with the same ID on another instance. The issue affects instances with the renderAuthJWT feature toggle enabled, which is the default starting from Grafana 13.0.0.

References

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