CVE-2026-41016

{"id": "CVE-2026-41016", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.2}]}, "published": "2026-04-30T10:16:01.930", "references": [{"url": "https://github.com/apache/airflow/pull/65346", "tags": ["Issue Tracking", "Patch"], "source": "security@apache.org"}, {"url": "https://lists.apache.org/thread/gb202qy5r31bgdd3d51d7s5o1jh40kc4", "tags": ["Mailing List", "Vendor Advisory"], "source": "security@apache.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@apache.org", "description": [{"lang": "en", "value": "CWE-295"}]}], "descriptions": [{"lang": "en", "value": "Apache Airflow's SMTP provider `SmtpHook` called Python's `smtplib.SMTP.starttls()` without an SSL context, so no certificate validation was performed on the TLS upgrade. A man-in-the-middle between the Airflow worker and the SMTP server could present a self-signed certificate, complete the STARTTLS upgrade, and capture the SMTP credentials sent during the subsequent `login()` call. Users are advised to upgrade to the `apache-airflow-providers-smtp` version that contains the fix."}], "lastModified": "2026-05-01T17:54:49.593", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D3CDDF65-39B0-4AD6-93EE-3CADB39474E1", "versionEndExcluding": "3.0.0", "versionStartIncluding": "2.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}