{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "11.0.0"
              },
              {
                "introduced": "12.4.10"
              },
              {
                "fixed": "13.0.0"
              },
              {
                "introduced": "13.0.8"
              },
              {
                "fixed": "13.1.0"
              },
              {
                "introduced": "13.1.5"
              },
              {
                "fixed": "13.2.0"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "277ef258d4b9a5acdf2932347c6a4ca72d739b28"
            },
            {
              "introduced": "81407c71e96e8351b4600164c1b4d30c8baf41d6"
            },
            {
              "fixed": "e9de482b5110e6e7310a18274c53a0d7d0eee6af"
            },
            {
              "introduced": "00656f0044f585bbce05b59d4429cdfa43fa34d3"
            },
            {
              "fixed": "b309c9bb3b81a748c3a75289236a27309ed2566a"
            },
            {
              "introduced": "3f02f9bd21247756f3ddbdf0a0cb4393fd3149b1"
            },
            {
              "fixed": "f681b1359f6a0b8ecb9f2c49a88ac72b75bde73b"
            }
          ],
          "repo": "https://github.com/grafana/grafana",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "GRAFANA",
    "cwe_ids": [
      "CWE-1023",
      "CWE-290",
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14199.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "11.0.0"
          },
          {
            "last_affected": "11.6.17"
          },
          {
            "introduced": "12.0.0"
          },
          {
            "last_affected": "12.2.11"
          },
          {
            "introduced": "12.3.0"
          },
          {
            "last_affected": "12.3.11"
          },
          {
            "introduced": "12.4.0"
          },
          {
            "last_affected": "12.4.9"
          },
          {
            "introduced": "13.0.0"
          },
          {
            "last_affected": "13.0.7"
          },
          {
            "introduced": "13.1.0"
          },
          {
            "last_affected": "13.1.4"
          },
          {
            "introduced": "13.2.0"
          },
          {
            "last_affected": "13.2.0"
          },
          {
            "introduced": "11.0.0"
          },
          {
            "last_affected": "11.6.17"
          },
          {
            "introduced": "12.0.0"
          },
          {
            "last_affected": "12.2.11"
          },
          {
            "introduced": "12.3.0"
          },
          {
            "last_affected": "12.3.11"
          },
          {
            "introduced": "12.4.0"
          },
          {
            "last_affected": "12.4.9"
          },
          {
            "introduced": "13.0.0"
          },
          {
            "last_affected": "13.0.7"
          },
          {
            "introduced": "13.1.0"
          },
          {
            "last_affected": "13.1.4"
          },
          {
            "introduced": "13.2.0"
          },
          {
            "last_affected": "13.2.0"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "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).",
  "id": "CVE-2026-14199",
  "modified": "2026-09-17T03:31:04.000263890Z",
  "published": "2026-09-02T16:06:28.165Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14199.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://grafana.com/security/security-advisories/cve-2026-14199"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14199"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Session takeover via Auth Proxy cache key collision"
}