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No exploitation reportedAwaiting NVD analysis

CVE-2026-102589

Cross-instance user impersonation through image renderer JWTs

No exploitation reported by the sources we read.

  • Published2026-11-11
  • WeaknessCWE-200 · CWE-346 · CWE-863

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

When independent Grafana instances share the same [rendering] renderer_token, an image renderer key issued by one instance is accepted by the others, so a user on one instance could act as the user with the same ID on another (origin validation error). This affects instances with the renderAuthJWT feature toggle enabled, the default from Grafana 13.0.0.

Timeline

dates in UTC
  1. 2026-11-1115:03CVE publishedCNA

Versions per branch

Products declared by the CNA

As GRAFANA, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Grafana OSSother versions: not affected
    Affected
    • ≥ 9.5.0, ≤ 12.3.11no fix statedsemver
    • ≥ 12.4.0, ≤ 12.4.14no fix statedsemver
    • ≥ 13.0.0, ≤ 13.0.12no fix statedsemver
    • ≥ 13.1.0, ≤ 13.1.9no fix statedsemver
    • ≥ 13.2.0, ≤ 13.2.5no fix statedsemver
    • ≥ 13.3.0, ≤ 13.3.0no fix statedsemver
  • Grafana Enterpriseother versions: not affected
    Affected
    • ≥ 9.5.0, ≤ 12.3.11no fix statedsemver
    • ≥ 12.4.0, ≤ 12.4.14no fix statedsemver
    • ≥ 13.0.0, ≤ 13.0.12no fix statedsemver
    • ≥ 13.1.0, ≤ 13.1.9no fix statedsemver
    • ≥ 13.2.0, ≤ 13.2.5no fix statedsemver
    • ≥ 13.3.0, ≤ 13.3.0no fix statedsemver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-11

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-102589 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-11-11
  • CNACVSS 3.17.12026-11-11
  • CNAweakness (CWE)CWE-200, CWE-346, CWE-8632026-11-11

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
Published
2026-11-11
Last Modified
2026-11-11
NVD status
Received

Frequently asked questions

What is CVE-2026-102589?

When independent Grafana instances share the same [rendering] renderer_token, an image renderer key issued by one instance is accepted by the others, so a user on one instance could act as the user with the same ID on another (origin validation error). This affects instances with the renderAuthJWT feature toggle enabled, the default from Grafana 13.0.0.

Is CVE-2026-102589 actively exploited?

Active exploitation of CVE-2026-102589 has not been confirmed.

What is the CVSS score for CVE-2026-102589?

CVE-2026-102589 has a CVSS v3 base score of 7.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L.

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