{"id":"CVE-2026-25917","aliases":["BIT-airflow-2026-25917","EUVD-2026-23658","GHSA-6ffj-2wg2-w45j","PYSEC-2026-13","PYSEC-2026-2359"],"status":"published","title":"Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)","description":"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00822,"percentile":0.57794,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502"],"published":"2026-04-18T06:20:11Z","modified":"2026-11-04T02:47:32Z","fixes":[{"ecosystem":"PyPI","package":"apache-airflow-core","fixed_in":["3.2.0"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"airflow","fixed_in":["3.2.0"],"sources":["osv"]},{"ecosystem":"PyPI","package":"apache-airflow","fixed_in":["3.2.0"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"apache-airflow-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.0"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"airflow","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.2.0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"apache-airflow-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.0"}]}],"versions":["3.0.0","3.0.0rc1","3.0.0rc1.post1","3.0.0rc1.post2","3.0.0rc1.post3","3.0.0rc1.post4","3.0.0rc2","3.0.0rc3","3.0.0rc4","3.0.1","3.0.1rc1","3.0.2","3.0.2rc1","3.0.2rc2","3.0.3","3.0.3rc1","3.0.3rc2","3.0.3rc3","3.0.3rc4","3.0.3rc5","3.0.3rc6","3.0.4","3.0.4rc1","3.0.4rc2","3.0.5","3.0.5rc1","3.0.5rc2","3.0.5rc3","3.0.6","3.0.6rc1","3.0.6rc2","3.1.0","3.1.0b1","3.1.0b2","3.1.0rc1","3.1.0rc2","3.1.1","3.1.1rc1","3.1.1rc2","3.1.2","3.1.2rc1","3.1.2rc2","3.1.3","3.1.3rc1","3.1.4","3.1.4rc1","3.1.4rc2","3.1.5","3.1.5rc1","3.1.6","3.1.6rc1","3.1.7","3.1.7rc1","3.1.7rc2","3.1.8","3.1.8rc1","3.1.8rc2","3.2.0b1","3.2.0b2","3.2.0rc1","3.2.0rc2"]},{"source":"osv","ecosystem":"PyPI","package":"apache-airflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.0"}]}],"versions":["1.10.0","1.10.1","1.10.10","1.10.10rc1","1.10.10rc2","1.10.10rc3","1.10.10rc4","1.10.10rc5","1.10.11","1.10.11rc1","1.10.11rc2","1.10.12","1.10.12rc1","1.10.12rc2","1.10.12rc3","1.10.12rc4","1.10.13","1.10.13rc1","1.10.14","1.10.14rc1","1.10.14rc2","1.10.14rc3","1.10.14rc4","1.10.15","1.10.15rc1","1.10.1b1","1.10.1rc2","1.10.2","1.10.2b2","1.10.2rc1","1.10.2rc2","1.10.2rc3","1.10.3","1.10.3b1","1.10.3b2","1.10.3rc1","1.10.3rc2","1.10.4","1.10.4b2","1.10.4rc1","1.10.4rc2","1.10.4rc3","1.10.4rc4","1.10.4rc5","1.10.5","1.10.5rc1","1.10.6","1.10.6rc1","1.10.6rc2","1.10.7","1.10.7rc1","1.10.7rc2","1.10.7rc3","1.10.8","1.10.8rc1","1.10.9","1.10.9rc1","1.8.1","1.8.2","1.8.2rc1","1.9.0","2.0.0","2.0.0b1","2.0.0b2","2.0.0b3","2.0.0rc1","2.0.0rc2","2.0.0rc3","2.0.1","2.0.1rc1","2.0.1rc2","2.0.2","2.0.2rc1","2.1.0","2.1.0rc1","2.1.0rc2","2.1.1","2.1.1rc1","2.1.2","2.1.2rc1","2.1.3","2.1.3rc1","2.1.4","2.1.4rc1","2.1.4rc2","2.10.0","2.10.0b1","2.10.0b2","2.10.0rc1","2.10.1","2.10.1rc1","2.10.2","2.10.2rc1","2.10.3","2.10.3rc1","2.10.3rc2","2.10.4","2.10.4rc1","2.10.5","2.10.5rc1","2.11.0","2.11.0rc1","2.11.1","2.11.1rc1","2.11.1rc2","2.11.2","2.11.2rc1","2.2.0","2.2.0b1","2.2.0b2","2.2.0rc1","2.2.1","2.2.1rc1","2.2.1rc2","2.2.2","2.2.2rc1","2.2.2rc2","2.2.3","2.2.3rc1","2.2.3rc2","2.2.4","2.2.4rc1","2.2.5","2.2.5rc1","2.2.5rc2","2.2.5rc3","2.3.0","2.3.0b1","2.3.0rc1","2.3.0rc2","2.3.1","2.3.1rc1","2.3.2","2.3.2rc1","2.3.2rc2","2.3.3","2.3.3rc1","2.3.3rc2","2.3.3rc3","2.3.4","2.3.4rc1","2.4.0","2.4.0b1","2.4.0rc1","2.4.1","2.4.1rc1","2.4.2","2.4.2rc1","2.4.3","2.4.3rc1","2.5.0","2.5.0rc1","2.5.0rc2","2.5.0rc3","2.5.1","2.5.1rc1","2.5.1rc2","2.5.2","2.5.2rc1","2.5.2rc2","2.5.3","2.5.3rc1","2.5.3rc2","2.6.0","2.6.0b1","2.6.0rc1","2.6.0rc2","2.6.0rc3","2.6.0rc4","2.6.0rc5","2.6.1","2.6.1rc1","2.6.1rc2","2.6.1rc3","2.6.2","2.6.2rc1","2.6.2rc2","2.6.3","2.6.3rc1","2.7.0","2.7.0b1","2.7.0rc1","2.7.0rc2","2.7.1","2.7.1rc1","2.7.1rc2","2.7.2","2.7.2rc1","2.7.3","2.7.3rc1","2.8.0","2.8.0b1","2.8.0rc1","2.8.0rc2","2.8.0rc3","2.8.0rc4","2.8.1","2.8.1rc1","2.8.2","2.8.2rc1","2.8.2rc2","2.8.2rc3","2.8.3","2.8.3rc1","2.8.4","2.8.4rc1","2.9.0","2.9.0b1","2.9.0b2","2.9.0rc1","2.9.0rc2","2.9.0rc3","2.9.1","2.9.1rc1","2.9.1rc2","2.9.2","2.9.2rc1","2.9.3","2.9.3rc1","3.0.0","3.0.0b4","3.0.0rc1","3.0.0rc1.post1","3.0.0rc1.post2","3.0.0rc1.post3","3.0.0rc1.post4","3.0.0rc2","3.0.0rc3","3.0.0rc4","3.0.1","3.0.1rc1","3.0.2","3.0.2rc1","3.0.2rc2","3.0.3","3.0.3rc1","3.0.3rc2","3.0.3rc3","3.0.3rc4","3.0.3rc5","3.0.3rc6","3.0.4","3.0.4rc1","3.0.4rc2","3.0.5","3.0.5rc1","3.0.5rc2","3.0.5rc3","3.0.6","3.0.6rc1","3.0.6rc2","3.1.0","3.1.0b1","3.1.0b2","3.1.0rc1","3.1.0rc2","3.1.1","3.1.1rc1","3.1.1rc2","3.1.2","3.1.2rc1","3.1.2rc2","3.1.3","3.1.3rc1","3.1.4","3.1.4rc1","3.1.4rc2","3.1.5","3.1.5rc1","3.1.6","3.1.6rc1","3.1.7","3.1.7rc1","3.1.7rc2","3.1.8","3.1.8rc1","3.1.8rc2","3.2.0b1","3.2.0b2","3.2.0rc1","3.2.0rc2"]},{"source":"osv","ecosystem":"PyPI","package":"apache-airflow-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduc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software foundation","product":"apache airflow"}],"references":[{"url":"https://github.com/apache/airflow/pull/61641","tags":["patch","Issue Tracking","report","fix","web"]},{"url":"https://lists.apache.org/thread/6whgpkqbh12rvpfmvcg8b0vwlv4hq3po","tags":["vendor-advisory","Mailing List","Vendor Advisory","advisory","web"]},{"url":"http://www.openwall.com/lists/oss-security/2026/04/17/9","tags":["Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25917","tags":["web","advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-13.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-6ffj-2wg2-w45j","tags":["advisory"]},{"url":"https://pypi.python.org","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25917.json","tags":["advisory"]},{"url":"https://github.com/apache/airflow","tags":["package"]},{"url":"https://pypi.org/project/apache-airflow-core","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-25917","title":"Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)","description":"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.","status":"published","published":"2026-04-18T06:20:11.187Z","modified":"2026-11-03T06:52:21.285Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-502"],"updated_at":"2026-11-03T07:42:18.253008Z"}],"euvd":[{"id":"EUVD-2026-23658","description":"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.","status":"published","published":"2026-04-18T06:20:11Z","modified":"2026-11-03T06:52:21Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T08:50:00.381029Z"}],"ghsa":[{"id":"GHSA-6ffj-2wg2-w45j","title":"Apache Airflow allows code execution through crafted XCom payloads","description":"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low. Users are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.","status":"published","published":"2026-04-18T09:30:20Z","modified":"2026-06-05T14:29:30Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:40:17.745826Z"}],"nvd":[{"id":"CVE-2026-25917","description":"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.","status":"published","published":"2026-04-18T07:16:09.347Z","modified":"2026-11-03T07:18:38.563Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-03T11:52:41.616427Z"}],"osv":[{"id":"CVE-2026-25917","title":"Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)","description":"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.","status":"published","published":"2026-04-18T06:20:11.187Z","modified":"2026-11-04T02:47:32.639313517Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-04T02:53:45.692342Z"},{"id":"GHSA-6ffj-2wg2-w45j","title":"Apache Airflow allows code execution through crafted XCom payloads","description":"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low. Users are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.","status":"published","published":"2026-04-18T09:30:20Z","modified":"2026-07-13T16:43:35.549127079Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:39.618611Z"},{"id":"PYSEC-2026-13","description":"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.","status":"published","published":"2026-04-18T07:16:09.347Z","modified":"2026-07-13T16:43:35.549127079Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:54.622769Z"},{"id":"PYSEC-2026-2359","title":"Apache Airflow allows code execution through crafted XCom payloads","description":"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low. Users are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.","status":"published","published":"2026-07-13T15:02:50.91203Z","modified":"2026-07-13T16:43:35.549127079Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:55.961245Z"},{"id":"BIT-airflow-2026-25917","title":"Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)","description":"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.","status":"published","published":"2026-04-21T12:01:27.677Z","modified":"2026-09-08T08:45:26.143964279Z","updated_at":"2026-11-02T15:28:28.267217Z"}]}}