# CVE-2026-30911: Apache Airflow: Execution API HITL Endpoints Missing Per-Task Authorization

Status: published. Published: 2026-03-17. Updated: 2026-11-03.

Apache Airflow versions 3.1.0 through 3.1.7 missing authorization vulnerability in the Execution API's Human-in-the-Loop (HITL) endpoints that allows any authenticated task instance to read, approve, or reject HITL workflows belonging to any other task instance.


Users are recommended to upgrade to Apache Airflow 3.1.8 or later, which resolves this issue.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: apache) — https://github.com/apache/airflow/pull/62886

## Affected products and versions

- Apache Software Foundation / Apache Airflow (apache-airflow-core): ≥ 3.1.0; < 3.1.8 (affected, semver). Source: CNA: apache

## Severity and prioritization

- CVSS 3.1: 8.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N; source: ADP: CISA-ADP

- CISA KEV: No listing in collected sources

- EPSS: 0.56% as of 2026-11-02; percentile 46.51%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-862

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/apache/airflow/pull/62886 (CNA: apache; patch)

- https://lists.apache.org/thread/1rs2v7fcko2otl6n9ytthcj87cmsgx51 (CNA: apache; vendor-advisory)

- http://www.openwall.com/lists/oss-security/2026/03/17/2 (ADP: CVE)

## Provenance

- CNA: apache: https://www.cve.org/CVERecord?id=CVE-2026-30911; retrieved 2026-11-03; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-30911; retrieved 2026-11-03; source updated Not reported

Revision: 673e0d498145d413736705d69c41dba6c9fa23dcaae170fb91d2753ad334f016

Canonical: https://y2.dev/cve/CVE-2026-30911

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