CVE-2026-79656
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.
Published:Oct 28, 2026
Last Modified:Oct 29, 2026
EPS:Oct 28, 2026
EPSS Score:0.00161
CVSS Score:6
Affected Products
Vendor
Product
Action
Vendor
Grafana
Product
Grafana
Grafana
Grafana
Vendor
Grafana
Product
Grafana Enterprise
Grafana
Grafana Enterprise
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
