CVE-2026-14199 — Session takeover via Auth Proxy cache key collision
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 …
Published: 2026-09-02 · CVSS: 7.1 · CVSS 3.1
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).
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7