CVE-2026-14199
CVE-2026-14199 · Session takeover via Auth Proxy cache key collision
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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).
CVSS 7.1 · High · EPSS 0.3%
- Published
- Updated
Stack: applications
Affected products and versions
grafana
- Versions
- ≥ 11.0.0, ≤ 11.6.17: Affected (semver)
- ≥ 12.0.0, ≤ 12.2.11: Affected (semver)
- ≥ 12.3.0, ≤ 12.3.11: Affected (semver)
- ≥ 12.4.0, ≤ 12.4.9: Affected (semver)
- ≥ 13.0.0, ≤ 13.0.7: Affected (semver)
- ≥ 13.1.0, ≤ 13.1.4: Affected (semver)
- ≥ 13.2.0, ≤ 13.2.0: Affected (semver)
No fix published