CVE-2026-33264

{"id": "CVE-2026-33264", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33264", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-07T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security@apache.org", "affectedData": [{"vendor": "Apache Software Foundation", "product": "Apache Airflow", "versions": [{"status": "affected", "version": "0", "lessThan": "3.3.0", "versionType": "semver"}], "packageName": "apache-airflow", "collectionURL": "https://pypi.python.org", "defaultStatus": "unaffected"}]}], "published": "2026-07-07T10:16:40.443", "references": [{"url": "https://github.com/apache/airflow/pull/66002", "tags": ["Issue Tracking", "Patch"], "source": "security@apache.org"}, {"url": "https://github.com/apache/airflow/pull/68528", "tags": ["Issue Tracking", "Patch"], "source": "security@apache.org"}, {"url": "https://lists.apache.org/thread/otvdw8qt2y7xy2n5nq9xby9ky4rf5ltj", "tags": ["Vendor Advisory", "Mailing List"], "source": "security@apache.org"}, {"url": "http://www.openwall.com/lists/oss-security/2026/07/07/1", "tags": ["Third Party Advisory", "Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@apache.org", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "value": "A bug in `BaseSerialization.deserialize()` allowed unrestricted `import_string()` of attacker-controlled class paths when the Scheduler / API Server loaded a serialized DAG: a DAG author could embed a malicious trigger into a DAG to gain remote code execution on the API Server / Scheduler process, crossing the Airflow security boundary that DAG-author code must never execute in those processes. Users are advised to upgrade to `apache-airflow` 3.3.0 or later. As a defense-in-depth mitigation, deployments where DAG-author trust is limited can restrict the `[core] allowed_deserialization_classes` config to a narrow allowlist."}], "lastModified": "2026-07-08T19:37:10.507", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6E334749-0D93-4319-9286-B9AC590F4698", "versionEndExcluding": "3.3.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}