{"id":"CVE-2026-68968","aliases":[],"cve":{"records":[{"id":"CVE-2026-68968","source":"apache","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-08-01T03:21:53.167Z","published":"2026-08-12T15:27:46.731Z","modified":"2026-11-03T07:00:06.532Z"}],"publishers":[{"name":"apache","role":"CNA","organizationId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","modified":"2026-11-03T07:00:06.532Z"},{"name":"CVE","role":"ADP","organizationId":"af854a3a-2127-422b-91ae-364da2661108","modified":"2026-08-12T17:20:23.888Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-08-13T12:13:17.521Z"}],"references":[{"url":"https://github.com/apache/airflow/pull/70889","tags":["patch"],"source":"apache"},{"url":"https://lists.apache.org/thread/f9zmw6xs5b4syhwzbl6fsxm4kf2632ol","tags":["vendor-advisory"],"source":"apache"},{"url":"http://www.openwall.com/lists/oss-security/2026/08/12/12","tags":[],"source":"CVE"}],"weaknesses":[{"id":"CWE-436","description":"CWE-436: Interpretation Conflict","source":"apache"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-08-13T12:12:32.883523Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Apache Airflow: Authorization bypass in the Backfill API through conflicting interpretations of the backfill id","titleSource":"apache","descriptionSource":"apache","description":"Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the `backfill_id` path segment failed to parse. The authorization dependency parsed it with `int()` while the route handler parsed it as pydantic's `NonNegativeInt`, which accepts values `int()` rejects (`1.0` coerces to `1`); FastAPI resolves dependencies before endpoint validation, so the two acted on different Dags. An authenticated user holding edit permission on any single Dag could therefore read, pause and cancel backfills belonging to any other Dag, including moving another Dag's queued runs to `failed`. No non-default configuration is required and backfill ids are sequential, so finding a target is trivial. Users are advised to upgrade to apache-airflow 3.3.1 or later, which parses the backfill id with the same type the routes declare.","score":7.5,"severity":"high","published":"2026-08-12T15:27:46.731Z","modified":"2026-11-03T07:00:06.532Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Apache Software Foundation","name":"Apache Airflow","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"3.0.0","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:pypi/apache-airflow","packageIdentity":{"ecosystem":"PyPI","name":"apache-airflow"},"cpes":[],"source":"apache","url":"https://www.cve.org/CVERecord?id=CVE-2026-68968"},{"vendor":"Apache Software Foundation","name":"Apache Airflow","platforms":[],"versions":[{"version":"3.0.0","status":"affected","lessThan":"3.3.1","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:pypi/apache-airflow-core","packageIdentity":{"ecosystem":"PyPI","name":"apache-airflow-core"},"cpes":[],"source":"apache","url":"https://www.cve.org/CVERecord?id=CVE-2026-68968"}],"remediation":[],"references":["https://github.com/apache/airflow/pull/70889","https://lists.apache.org/thread/f9zmw6xs5b4syhwzbl6fsxm4kf2632ol","http://www.openwall.com/lists/oss-security/2026/08/12/12"],"sources":[{"name":"CVE","id":"CVE-2026-68968","modified":"2026-11-03T07:00:06.532Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-68968"}],"assessments":[{"source":"CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5}],"sourceAffected":[],"observedAt":"2026-11-03T07:11:33.890Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T00:15:33.603Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-03T07:15:30.934Z","attemptedAt":"2026-11-03T07:15:30.934Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-03T07:15:31.526Z","attemptedAt":"2026-11-03T07:15:31.526Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-03T07:15:31.526Z","attemptedAt":"2026-11-03T07:15:31.526Z"},{"source":"EPSS","status":"available","checkedAt":"2026-11-03T07:15:31.526Z","attemptedAt":"2026-11-03T07:15:31.526Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-68968","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68968","modified":"2026-10-24T16:10:00.153","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","checkedAt":"2026-11-03T07:15:30.934Z"},{"source":"FIRST EPSS","id":"CVE-2026-68968","url":"https://www.first.org/epss/","probability":0.00417,"percentile":0.35964,"date":"2026-11-02","checkedAt":"2026-11-03T07:15:31.526Z"},{"source":"ENISA EUVD","id":"EUVD-2026-57271","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-57271","modified":"Sep 16, 2026, 2:57:09 PM","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","checkedAt":"2026-11-03T07:15:31.526Z"},{"source":"GitHub Advisory Database","id":"GHSA-j4jc-cq9h-xrhr","url":"https://github.com/advisories/GHSA-j4jc-cq9h-xrhr","modified":"2026-10-02T23:14:03Z","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","checkedAt":"2026-11-03T07:15:31.526Z"}],"aiSummary":{"text":"Apache Airflow's Backfill API has an authorization bypass vulnerability due to conflicting interpretations of the backfill id, affecting versions less than 3.0.0 and 3.0.0 to less than 3.3.1. An authenticated user with edit permission on any Dag can read, pause, and cancel backfills of other Dags. The issue arises from different parsing of the backfill id by the authorization dependency and the route handler.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-03T07:16:05.784Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-68968"}]}}