A user with read access to Grafana's server logs, or to a log store they are shipped to, can recover the OAuth and OIDC access, refresh and ID tokens of users who sign in through the Generic OAuth, Google or GitLab providers. Grafana writes these tokens to its logs unredacted when an access or ID token is not a valid JWT, when the ID token is missing (at debug level) or is not a string (exposure of sensitive information in log files). The exposure is bounded by the scopes granted to the configured OAuth client.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact None

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.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Grafana Grafana OSS unaffected
Version Status Constraints
0 affected ≤ 12.3.11
12.4.0 affected < 12.4.11
13.0.0 affected < 13.0.9
13.1.0 affected < 13.1.6
13.2.0 affected < 13.2.2
Grafana Grafana Enterprise unaffected
Version Status Constraints
0 affected ≤ 12.3.11
12.4.0 affected < 12.4.11
13.0.0 affected < 13.0.9
13.1.0 affected < 13.1.6
13.2.0 affected < 13.2.2

No data.

No data.

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Advisories

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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-2026-79656 cve-icon cve-icon
History

Wed, 28 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Grafana
Grafana grafana
Grafana grafana Enterprise
Vendors & Products Grafana
Grafana grafana
Grafana grafana Enterprise

Wed, 28 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Description A user with read access to Grafana's server logs, or to a log store they are shipped to, can recover the OAuth and OIDC access, refresh and ID tokens of users who sign in through the Generic OAuth, Google or GitLab providers. Grafana writes these tokens to its logs unredacted when an access or ID token is not a valid JWT, when the ID token is missing (at debug level) or is not a string (exposure of sensitive information in log files). The exposure is bounded by the scopes granted to the configured OAuth client.
Title OAuth and OIDC tokens written unredacted to server logs by the Generic OAuth, Google and GitLab connectors
Weaknesses CWE-532
References
Metrics cvssV3_1

{'score': 6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GRAFANA

Published:

Updated: 2026-10-28T17:23:44.625Z

Reserved: 2026-08-25T11:00:05.466Z

Link: CVE-2026-79656

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-28T18:17:20.270

Modified: 2026-10-28T18:17:20.270

Link: CVE-2026-79656

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T19:30:14Z

Weaknesses