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CVE-2026-33381: Vulnerability in Grafana Grafana OSS

0
Medium
VulnerabilityCVE-2026-33381cvecve-2026-33381gcvecwe-284
Published: 05/13/2026 (05/13/2026, 19:28:31 UTC)
Source: CVE Database V5
Vendor/Project: Grafana
Product: Grafana OSS

Description

When a user's access to mint tokens for a service account is revoked, it is sometimes still possible to do so for a few seconds after the event. The user will eventually lose access to do this.

CVSS v3.1

Score 5.9medium

Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

Affected software

Grafana

Grafana OSS

Affected versions
>=9.2.0 <=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
GitHub Actionsmore threats →ai
grafana/grafana
pkg:github/grafana/grafana
Affected versions
=9.2.0=11.6.14=12.0.0=12.2.8=12.3.0=12.3.6=12.4.0=12.4.3=13.0.0=13.0.1

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/11/2026, 13:40:34 UTC

Technical Analysis

This vulnerability involves a timing issue in Grafana OSS's access control for minting tokens tied to service accounts. When a user's permission to mint tokens is revoked, the system may still allow token minting for a brief period before the revocation fully takes effect. This could lead to unauthorized token issuance during that short window. The vulnerability is tracked as CWE-284 (Improper Access Control) and has a CVSS 3.1 base score of 5.9, indicating medium severity. No official patch or remediation guidance has been published as of the data provided.

Potential Impact

The impact is that an attacker or user whose minting privileges have been revoked might still mint tokens for a few seconds after revocation, potentially enabling unauthorized access or actions tied to those tokens during that brief period. There is no indication of denial of service or data destruction. The vulnerability does not appear to be actively exploited in the wild at this time.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or workaround is provided, users should monitor vendor communications for updates. No specific mitigation steps are documented in the provided data.

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Technical Details

Data Version
5.2
Assigner Short Name
GRAFANA
Date Reserved
2026-03-19T07:55:06.978Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6a04d644cbff5d861003f1ef

Added to database: 05/13/2026, 19:51:32 UTC

Last enriched: 08/11/2026, 13:40:34 UTC

Last updated: 09/14/2026, 22:01:33 UTC

Views: 112

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