{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-67587","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","state":"PUBLISHED","assignerShortName":"apache","dateReserved":"2026-07-29T19:47:18.427Z","datePublished":"2026-08-12T15:32:10.565Z","dateUpdated":"2026-08-13T12:17:26.307Z"},"containers":{"cna":{"affected":[{"collectionURL":"https://pypi.python.org","defaultStatus":"unaffected","packageName":"apache-airflow","product":"Apache Airflow","vendor":"Apache Software Foundation","versions":[{"lessThan":"3.3.1","status":"affected","version":"3.3.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Nguyen Van Hiep (@hypnguyen1209), MBBank"},{"lang":"en","type":"remediation developer","value":"Jarek Potiuk"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Apache Airflow's Task SDK rebuilt a `Callback` object from serialized data by re-running its constructor, which imports the module named by the stored callback path. Because `SyncCallback` is itself an Airflow class it passes the default `allowed_deserialization_classes` allow-list, so tightening that setting does not help. A Dag author — who controls a task instance's `next_kwargs` through the task execution API — can therefore cause an arbitrary module to be imported inside the scheduler process, when the scheduler's `awaiting_input` timeout sweep deserializes that value. No non-default configuration is required; the sweep runs unconditionally. Versions before 3.3.0 are not affected: the class existed, but the scheduler sweep that reaches it did not. This is a separate code path from CVE-2026-58076 and CVE-2026-67260, which cover different gadgets reaching deserialization — applying either of those fixes does not address this one. Users are advised to upgrade to apache-airflow 3.3.1 or later."}],"value":"Apache Airflow's Task SDK rebuilt a `Callback` object from serialized data by re-running its constructor, which imports the module named by the stored callback path. Because `SyncCallback` is itself an Airflow class it passes the default `allowed_deserialization_classes` allow-list, so tightening that setting does not help. A Dag author — who controls a task instance's `next_kwargs` through the task execution API — can therefore cause an arbitrary module to be imported inside the scheduler process, when the scheduler's `awaiting_input` timeout sweep deserializes that value. No non-default configuration is required; the sweep runs unconditionally. Versions before 3.3.0 are not affected: the class existed, but the scheduler sweep that reaches it did not. This is a separate code path from CVE-2026-58076 and CVE-2026-67260, which cover different gadgets reaching deserialization — applying either of those fixes does not address this one. Users are advised to upgrade to apache-airflow 3.3.1 or later."}],"metrics":[{"other":{"content":{"text":"important"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","description":"CWE-502: Deserialization of Untrusted Data","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache","dateUpdated":"2026-08-12T16:25:04.749Z"},"references":[{"tags":["patch"],"url":"https://github.com/apache/airflow/pull/70704"},{"tags":["related"],"url":"https://www.cve.org/CVERecord?id=CVE-2026-58076"},{"tags":["related"],"url":"https://www.cve.org/CVERecord?id=CVE-2026-67260"},{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/o00ww4n69qojvsckb464dtwd2nhzy6t0"}],"source":{"discovery":"UNKNOWN"},"title":"Apache Airflow: DAG-author remote code execution on the Scheduler via a Serde `Callback` deserialization gadget","x_generator":{"engine":"airflow-s/generate_cve_json.py"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.8,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-13T12:17:23.923988Z","id":"CVE-2026-67587","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-13T12:17:26.307Z"}}]}}