{"id":"BIT-grafana-2026-14199","summary":"Session takeover via Auth Proxy cache key collision","details":"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).","aliases":["CVE-2026-14199"],"modified":"2026-09-16T16:45:05.026071137Z","published":"2026-09-08T08:14:51.153Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*","cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*","cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*","cpe:2.3:a:grafana:grafana:*:*:*:*:*:go:*:*"]},"references":[{"type":"ADVISORY","url":"https://grafana.com/security/security-advisories/cve-2026-14199"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-14199"}],"affected":[{"package":{"name":"grafana","ecosystem":"Bitnami","purl":"pkg:bitnami/grafana"},"ranges":[{"type":"SEMVER","events":[{"introduced":"11.0.0"},{"fixed":"12.4.10"},{"introduced":"13.0.0"},{"fixed":"13.0.8"},{"introduced":"13.1.0"},{"fixed":"13.2.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/grafana/BIT-grafana-2026-14199.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"}]}],"schema_version":"1.9.0"}