CVE-2026-41084 json
Apache Airflow: API authorization bypass: bulk TaskInstances allows cross-DAG mutation
published 5mo ago modified 6d ago also BIT-airflow-2026-41084 , EUVD-2026-33592 , GHSA-mxq5-f9c5-w4p5 , PYSEC-2026-183
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- pypi apache-airflow 3.2.2
- bitnami airflow 3.2.2
- Apache Software Foundation Apache Airflow 3.2.2
- github.com/apache/airflow#64288 pull request
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 5mo ago
Exploit prediction
0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | apache-airflow | >=3.2.0, <3.2.2 |
3.2.2 |
| bitnami | airflow | >=3.2.0, <3.2.2 |
3.2.2 |
Affected products
- Apache Software Foundation Apache Airflow
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
References
-
github.com
/apache/airflow/pull/64288
patch, web, issue-tracking
-
lists.apache.org
/thread/w0hdcqfr71hf9rl1bwvpjs7q9yp1bldk
vendor-advisory, web, mailing-list, advisory
-
openwall.com
/lists/oss-security/2026/05/31/7
web, mailing-list, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-41084
advisory, web
-
github.com
/apache/airflow
package
-
github.com
/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-183.yaml
web
-
github.com
/advisories/GHSA-mxq5-f9c5-w4p5
advisory
Sources
- CVE List CVE-2026-41084
- GitHub Advisory GHSA-mxq5-f9c5-w4p5
- NVD CVE-2026-41084
- OSV BIT-airflow-2026-41084
- OSV PYSEC-2026-183
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.