{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "4.9.1"
              },
              {
                "fixed": "4.15.0"
              },
              {
                "introduced": "5.0.0-rc.0"
              },
              {
                "fixed": "5.0.0-rc.14"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "4f33c727b03a58d29a1d8a0a47d795548da3ab50"
            },
            {
              "fixed": "d6b2be35cf8f0b8ab84e7a934cfb0d91de0a3c17"
            },
            {
              "introduced": "6767fe27eb952e5bc09aa2e5a7d8f96f5a1c424a"
            },
            {
              "fixed": "fea75958a081ed337ceb578396174039694c48df"
            },
            {
              "fixed": "a3f49f758f013d2ff086dd9c5ef2d94e921711b4"
            },
            {
              "fixed": "e28e911caa9728d76329afdb0fb26742ffe4eeef"
            },
            {
              "fixed": "fcaeb73f76f8f2e9aef8bf637690d2a20dd97596"
            }
          ],
          "repo": "https://github.com/team-alembic/ash_authentication",
          "type": "GIT"
        },
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2.10.0"
              },
              {
                "fixed": "2.17.4"
              },
              {
                "introduced": "3.0.0-rc.0"
              },
              {
                "fixed": "3.0.0-rc.11"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "f01a9164b2baa707d04ceb7b68f43a1cdc876960"
            },
            {
              "fixed": "ada68111380b56cacd018ad199e7965328160a24"
            },
            {
              "introduced": "5e08034cab9e1f0306a5576c74566f1e462a462f"
            },
            {
              "fixed": "97cd7870a6c72ac222f78165667f6c4300a12992"
            },
            {
              "fixed": "0135217e34e621dac79ae3d9559aeee49304b0aa"
            },
            {
              "fixed": "a3253fb4fc7145aeb403537af1c24d3a8d51ffb1"
            },
            {
              "fixed": "f7ab005a2aac09707a25521653c94893d328cc52"
            }
          ],
          "repo": "https://github.com/team-alembic/ash_authentication_phoenix",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "EEF",
    "cwe_ids": [
      "CWE-613"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86533.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "fcaeb73f76f8f2e9aef8bf637690d2a20dd97596"
          },
          {
            "fixed": "*"
          },
          {
            "introduced": "a3253fb4fc7145aeb403537af1c24d3a8d51ffb1"
          },
          {
            "fixed": "*"
          },
          {
            "introduced": "0135217e34e621dac79ae3d9559aeee49304b0aa"
          },
          {
            "fixed": "*"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Insufficient Session Expiration vulnerability in team-alembic AshAuthentication and AshAuthentication Phoenix allows a revoked session to remain fully authenticated.\n\nA resource configured with session_identifier :jti and require_token_presence_for_authentication? disabled stores its session value as \u003cjti\u003e:\u003csubject\u003e. The jti is there so that signing out can revoke that one session. Neither reader consults it: AshAuthentication.Plug.Helpers.authenticate_resource_from_session/4 and AshAuthentication.Phoenix.LiveSession.on_mount/4 both split the value with split_identifier/2, discard the jti and pass the bare subject to AshAuthentication.subject_to_user/3, which reloads the record. The token-presence branch of each function does check its token, calling AshAuthentication.TokenResource.Actions.get_token/3 with the jti and the purpose user. Because the revocation record is never read, neither its revoked state nor its expiry constrains the session, so a session captured before sign-out keeps working.\n\nThis issue affects ash_authentication: from 4.9.1 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14; ash_authentication_phoenix: from 2.10.0 before 2.17.4 and from 3.0.0-rc.0 before 3.0.0-rc.11.",
  "id": "CVE-2026-86533",
  "modified": "2026-09-21T03:31:08.513768029Z",
  "published": "2026-09-17T13:09:37.963Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-86533.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-86533"
    },
    {
      "type": "WEB",
      "url": "https://repo.hex.pm"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86533.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/team-alembic/ash_authentication/security/advisories/GHSA-w374-hvrx-66hg"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/team-alembic/ash_authentication_phoenix/security/advisories/GHSA-m6x4-4gvp-xwjr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86533"
    },
    {
      "type": "FIX",
      "url": "https://github.com/team-alembic/ash_authentication/commit/a3f49f758f013d2ff086dd9c5ef2d94e921711b4"
    },
    {
      "type": "FIX",
      "url": "https://github.com/team-alembic/ash_authentication/commit/e28e911caa9728d76329afdb0fb26742ffe4eeef"
    },
    {
      "type": "FIX",
      "url": "https://github.com/team-alembic/ash_authentication/commit/fcaeb73f76f8f2e9aef8bf637690d2a20dd97596"
    },
    {
      "type": "FIX",
      "url": "https://github.com/team-alembic/ash_authentication_phoenix/commit/0135217e34e621dac79ae3d9559aeee49304b0aa"
    },
    {
      "type": "FIX",
      "url": "https://github.com/team-alembic/ash_authentication_phoenix/commit/a3253fb4fc7145aeb403537af1c24d3a8d51ffb1"
    },
    {
      "type": "FIX",
      "url": "https://github.com/team-alembic/ash_authentication_phoenix/commit/f7ab005a2aac09707a25521653c94893d328cc52"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/team-alembic/ash_authentication"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/team-alembic/ash_authentication_phoenix"
    }
  ],
  "related": [
    "GHSA-w374-hvrx-66hg",
    "GHSA-m6x4-4gvp-xwjr"
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Revoked session accepted because the session jti is never checked in AshAuthentication and AshAuthentication Phoenix"
}