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CVE-2026-79656

OAuth and OIDC tokens written unredacted to server logs by the Generic OAuth, Google and GitLab connectors

MEDIUM
6
CVSS Score
Published: October 28, 2026 at 05:23 PM UTC
Updated: October 29, 2026 at 03:29 PM UTC
1 product affected across 1 vendorGrafana

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Severity
MEDIUM6
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://grafana.com/security/security-advisories/cve-2026-79656

CVSS

6MEDIUMGRAFANA
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-532

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