Description
Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Grafana Grafana Enterprise
Default version status: unaffected
11.0.0 to ≤ 11.6.17affected12.0.0 to ≤ 12.2.11affected12.3.0 to ≤ 12.3.11affected12.4.0 to ≤ 12.4.9affected13.0.0 to ≤ 13.0.7affected13.1.0 to ≤ 13.1.4affected13.2.0 to ≤ 13.2.0affected
Grafana Grafana OSS
Default version status: unaffected
11.0.0 to ≤ 11.6.17affected12.0.0 to ≤ 12.2.11affected12.3.0 to ≤ 12.3.11affected12.4.0 to ≤ 12.4.9affected13.0.0 to ≤ 13.0.7affected13.1.0 to ≤ 13.1.4affected13.2.0 to ≤ 13.2.0affected