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GHSA-mxq5-f9c5-w4p5: Apache Airflow Vulnerable to Authorization Bypass Through User-Controlled Key

highCVSS 7.5CVE-2026-41084
A bug in Apache Airflow's bulk Task Instances API (PATCH/DELETE /api/v2/dags/{dag_id}/dagRuns/{dag_run_id}/taskInstances) evaluated authorization against the dag_id resolved from the URL path while operating on the dag_id / dag_run_id extracted from request-body entity fields. An authenticated UI/API user with edit permission on one Dag could mutate Task Instance state in any other Dag by keeping the authorized Dag's ID in the URL path and naming the target Dag's IDs in the request body entities. Affects deployments that rely on per-Dag edit-scope to keep Task Instance state isolated between teams. Users are advised to upgrade to apache-airflow 3.2.2 or later.

Details

Source
GitHub Security Advisories (INTL · database · site)
Severity
high — CVSS 7.5
Published
2026-06-01
Last updated
2026-07-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://github.com/advisories/GHSA-mxq5-f9c5-w4p5

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-41084coverage & exploitation statusNVD · CVE.org

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