CVE-2026-102589 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://grafana.com/security/security-advisories/cve-2026-102589

History

Wed, 11 Nov 2026 15:15:00 +0000

Type	Values Removed	Values Added
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.
Title		Cross-instance user impersonation through image renderer JWTs
Weaknesses		CWE-200 CWE-346 CWE-863
References		https://grafana.com/security/security-advisories/cve-2026-102589
Metrics		cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: GRAFANA

Published: 2026-11-11T15:03:07.435Z

Updated: 2026-11-11T15:03:07.435Z

Reserved: 2026-09-29T14:13:30.774Z

Link: CVE-2026-102589

Vulnrichment

No data.

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

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