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authentik cross-provider token validation problems

Type: advisorySources: OSV

authentik is an open-source identity provider. Prior to versions 2024.8.3 and 2024.6.5, access tokens issued to one application can be stolen by that application and used to impersonate the user against any other proxy provider. Also, a user can steal an access token they were legitimately issued for one application and use it to access another application that they aren't allowed to access. Anyone who has more than one proxy provider application with different trust domains or different access control is affected. Versions 2024.8.3 and 2024.6.5 fix the issue.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2024-47077
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 08:16 UTC · Revision 1

Source evidence

authentik cross-provider token validation problems

core-osv · Original source

Published 27 Sept 2024, 15:26 UTC

authentik is an open-source identity provider. Prior to versions 2024.8.3 and 2024.6.5, access tokens issued to one application can be stolen by that application and used to impersonate the user against any other proxy provider. Also, a user can steal an access token they were legitimately issued for one application and use it to access another application that they aren't allowed to access. Anyone who has more than one proxy provider application with different trust domains or different access control is affected. Versions 2024.8.3 and 2024.6.5 fix the issue.

osv:CVE-2024-47077
Complete source record
{
  "id": "bfc76238182d3b0e0ca5ac6c49d396f0b78ca2a7ffb72a211b4dbc8e08c05447",
  "url": "https://osv.dev/vulnerability/CVE-2024-47077",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "authentik cross-provider token validation problems",
    "summary": "authentik is an open-source identity provider. Prior to versions 2024.8.3 and 2024.6.5, access tokens issued to one application can be stolen by that application and used to impersonate the user against any other proxy provider. Also, a user can steal an access token they were legitimately issued for one application and use it to access another application that they aren't allowed to access. Anyone who has more than one proxy provider application with different trust domains or different access control is affected. Versions 2024.8.3 and 2024.6.5 fix the issue.",
    "evidence": "osv:CVE-2024-47077",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-47077",
      "aliases": [
        "BIT-authentik-2024-47077",
        "CVE-2024-47077",
        "GHSA-8gfm-pr6x-pfh9"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/goauthentik/authentik",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8469213d82243b24049b2b83e8f0a9421a42eec7"
                },
                {
                  "introduced": "2fb097061d4116766b3c9d88c1c2214b05d44380"
                },
                {
                  "fixed": "91d2445c61da49026f76dceb7f5b524e30335a42"
                },
                {
                  "fixed": "22e586bd8cdc3d1db8a0f18314d76f82371129b2"
                },
                {
                  "fixed": "57a31b5dd16d4adce716b9878455c0d6f58155fe"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2024.6.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2024.8.0"
                      },
                      {
                        "fixed": "2024.8.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "22e586bd8cdc3d1db8a0f18314d76f82371129b2"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "57a31b5dd16d4adce716b9878455c0d6f58155fe"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-47077.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:27.091252081Z",
      "provider": "osv",
      "references": [
        "https://github.com/goauthentik/authentik/blob/70b5a214f2e7205572f914aaf68682501b9f5945/authentik/providers/oauth2/views/introspection.py#L42-L51",
        "https://github.com/goauthentik/authentik/blob/70b5a214f2e7205572f914aaf68682501b9f5945/internal/outpost/proxyv2/application/auth_bearer.go#L30-L36",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47077.json",
        "https://github.com/goauthentik/authentik/security/advisories/GHSA-8gfm-pr6x-pfh9",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-47077",
        "https://github.com/goauthentik/authentik/commit/22e586bd8cdc3d1db8a0f18314d76f82371129b2",
        "https://github.com/goauthentik/authentik/commit/57a31b5dd16d4adce716b9878455c0d6f58155fe"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47077.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-47077",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 493716,
  "published_at": "2024-09-27T15:26:20.683+00:00"
}