CVE-2026-67587

{"id": "CVE-2026-67587", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-67587", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-13T12:17:23.923988Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"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"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security@apache.org", "affectedData": [{"vendor": "Apache Software Foundation", "product": "Apache Airflow", "versions": [{"status": "affected", "version": "3.3.0", "lessThan": "3.3.1", "versionType": "semver"}], "packageURL": "pkg:pypi/apache-airflow", "packageName": "apache-airflow", "collectionURL": "https://pypi.python.org", "defaultStatus": "unaffected"}]}], "published": "2026-08-12T16:17:15.090", "references": [{"url": "https://github.com/apache/airflow/pull/70704", "tags": ["Issue Tracking", "Patch"], "source": "security@apache.org"}, {"url": "https://lists.apache.org/thread/o00ww4n69qojvsckb464dtwd2nhzy6t0", "tags": ["Mailing List", "Vendor Advisory"], "source": "security@apache.org"}, {"url": "https://www.cve.org/CVERecord?id=CVE-2026-58076", "tags": ["Not Applicable"], "source": "security@apache.org"}, {"url": "https://www.cve.org/CVERecord?id=CVE-2026-67260", "tags": ["Not Applicable"], "source": "security@apache.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@apache.org", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "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 \u2014 who controls a task instance's `next_kwargs` through the task execution API \u2014 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 \u2014 applying either of those fixes does not address this one. Users are advised to upgrade to apache-airflow 3.3.1 or later."}], "lastModified": "2026-09-16T15:17:41.107", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F6D5F0B2-15A2-4782-8CC5-769E57D5F2F6", "versionEndExcluding": "3.3.1", "versionStartIncluding": "3.3.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}