CVE-2026-102589: Grafana OSS · Origin Validation Error
Affects Grafana OSSSource CVE Database V5
Not known to be exploited · CVSS 7.1 High.
Data as of 11 Nov 2026, 15:34 UTC
Thin evidence
One scorer or none| CNA (GRAFANA) | CVSS 3.1 | 7.1 |
|---|
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:LExploitation evidence
Disclosed: evidence found.
CVE published 11 Nov 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 11 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GrafanaGrafana OSS | Affected
| Fixed in– |
| GrafanaGrafana Enterprise | Affected
| 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.