affected:
- package:
    ecosystem: PyPI
    name: apache-airflow
    purl: pkg:pypi/apache-airflow
  ranges:
  - events:
    - introduced: 3.1.8
    - fixed: 3.2.0
    type: ECOSYSTEM
  versions:
  - 3.1.8
  - 3.2.0b1
  - 3.2.0b2
  - 3.2.0rc1
  - 3.2.0rc2
aliases:
- CVE-2026-33858
- GHSA-mc4f-r875-v87w
details: |-
  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 resolves this issue.
id: PYSEC-2026-20
modified: '2026-05-20T09:18:53.288430Z'
published: '2026-04-13T15:17:33.343Z'
references:
- type: ADVISORY
  url: http://www.openwall.com/lists/oss-security/2026/04/13/7
- type: ADVISORY
  url: https://lists.apache.org/thread/1npt3o2x81s0gw9tmfcv4n7p1z9hdmy0
- type: REPORT
  url: https://github.com/apache/airflow/pull/64148
- type: ADVISORY
  url: https://github.com/advisories/GHSA-mc4f-r875-v87w
severity:
- score: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  type: CVSS_V3