Answer in brief
CVE-2026-79656 records a Medium severity (CVSS 6.0) vulnerability in OAuth and OIDC tokens written unredacted to server logs by the Generic OAuth, Google and GitLab connectors. The current sources do not mark it as known exploited. The current feed maps Grafana/Grafana Enterprise (generic), Grafana/Grafana OSS (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Grafana/Grafana Enterprise (generic), Grafana/Grafana OSS (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Grafana/Grafana Enterprisegeneric | >=0 <=12.3.11 || >=12.4.0 <12.4.11 || >=13.0.0 <13.0.9 || >=13.1.0 <13.1.6 || >=13.2.0 <13.2.2 | 12.4.11, 13.0.9, 13.1.6, 13.2.2 |
| Grafana/Grafana OSSgeneric | >=0 <=12.3.11 || >=12.4.0 <12.4.11 || >=13.0.0 <13.0.9 || >=13.1.0 <13.1.6 || >=13.2.0 <13.2.2 | 12.4.11, 13.0.9, 13.1.6, 13.2.2 |
Published upstream
Oct 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 28, 2026
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.
Quoted source text, attributed separately from HOL analysis.