{"id":"CVE-2026-14199","state":"PUBLISHED","title":"Session takeover via Auth Proxy cache key collision","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).","publishedAt":"2026-09-02T16:06:28.165Z","updatedAt":"2026-09-03T08:07:46.925Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L","source":"GRAFANA"},"assigner":"GRAFANA","products":["Grafana Grafana Enterprise","Grafana Grafana OSS"],"affected":[{"vendor":"Grafana","product":"Grafana Enterprise","defaultStatus":"unaffected","versions":[{"version":"11.0.0","status":"affected","lessThanOrEqual":"11.6.17","versionType":"semver"},{"version":"12.0.0","status":"affected","lessThanOrEqual":"12.2.11","versionType":"semver"},{"version":"12.3.0","status":"affected","lessThanOrEqual":"12.3.11","versionType":"semver"},{"version":"12.4.0","status":"affected","lessThanOrEqual":"12.4.9","versionType":"semver"},{"version":"13.0.0","status":"affected","lessThanOrEqual":"13.0.7","versionType":"semver"},{"version":"13.1.0","status":"affected","lessThanOrEqual":"13.1.4","versionType":"semver"},{"version":"13.2.0","status":"affected","lessThanOrEqual":"13.2.0","versionType":"semver"}]},{"vendor":"Grafana","product":"Grafana OSS","defaultStatus":"unaffected","versions":[{"version":"11.0.0","status":"affected","lessThanOrEqual":"11.6.17","versionType":"semver"},{"version":"12.0.0","status":"affected","lessThanOrEqual":"12.2.11","versionType":"semver"},{"version":"12.3.0","status":"affected","lessThanOrEqual":"12.3.11","versionType":"semver"},{"version":"12.4.0","status":"affected","lessThanOrEqual":"12.4.9","versionType":"semver"},{"version":"13.0.0","status":"affected","lessThanOrEqual":"13.0.7","versionType":"semver"},{"version":"13.1.0","status":"affected","lessThanOrEqual":"13.1.4","versionType":"semver"},{"version":"13.2.0","status":"affected","lessThanOrEqual":"13.2.0","versionType":"semver"}]}],"references":["https://grafana.com/security/security-advisories/cve-2026-14199"],"weaknesses":["CWE-290","CWE-1023","CWE-863"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/14xxx/CVE-2026-14199.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-14199","state":"PUBLISHED","datePublished":"2026-09-02T16:06:28.165Z","dateUpdated":"2026-09-03T08:07:46.925Z","assignerShortName":"GRAFANA","assignerOrgId":"57da9224-a3e2-4646-9d0e-c4dc2e05e7da","dateReserved":"2026-06-30T09:16:17.958Z"},"containers":{"cna":{"title":"Session takeover via Auth Proxy cache key collision","descriptions":[{"lang":"en","value":"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":[{"vendor":"Grafana","product":"Grafana Enterprise","defaultStatus":"unaffected","versions":[{"version":"11.0.0","status":"affected","lessThanOrEqual":"11.6.17","versionType":"semver"},{"version":"12.0.0","status":"affected","lessThanOrEqual":"12.2.11","versionType":"semver"},{"version":"12.3.0","status":"affected","lessThanOrEqual":"12.3.11","versionType":"semver"},{"version":"12.4.0","status":"affected","lessThanOrEqual":"12.4.9","versionType":"semver"},{"version":"13.0.0","status":"affected","lessThanOrEqual":"13.0.7","versionType":"semver"},{"version":"13.1.0","status":"affected","lessThanOrEqual":"13.1.4","versionType":"semver"},{"version":"13.2.0","status":"affected","lessThanOrEqual":"13.2.0","versionType":"semver"}]},{"vendor":"Grafana","product":"Grafana OSS","defaultStatus":"unaffected","versions":[{"version":"11.0.0","status":"affected","lessThanOrEqual":"11.6.17","versionType":"semver"},{"version":"12.0.0","status":"affected","lessThanOrEqual":"12.2.11","versionType":"semver"},{"version":"12.3.0","status":"affected","lessThanOrEqual":"12.3.11","versionType":"semver"},{"version":"12.4.0","status":"affected","lessThanOrEqual":"12.4.9","versionType":"semver"},{"version":"13.0.0","status":"affected","lessThanOrEqual":"13.0.7","versionType":"semver"},{"version":"13.1.0","status":"affected","lessThanOrEqual":"13.1.4","versionType":"semver"},{"version":"13.2.0","status":"affected","lessThanOrEqual":"13.2.0","versionType":"semver"}]}],"references":[{"url":"https://grafana.com/security/security-advisories/cve-2026-14199","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"version":"3.1","baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-290","lang":"en","description":"CWE-290","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1023","lang":"en","description":"CWE-1023","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863","type":"CWE"}]}],"providerMetadata":{"shortName":"GRAFANA","orgId":"57da9224-a3e2-4646-9d0e-c4dc2e05e7da","dateUpdated":"2026-09-03T08:07:46.925Z"},"datePublic":"2026-09-02T09:00:00.000Z","credits":[{"lang":"en","value":"rebelarch (Researcher)","type":"finder"}],"source":{"discovery":"BUG_BOUNTY"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-02T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-14199"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-03T03:56:40.337Z"}}]}}}