CVE-2026-49296 json
Apache Airflow: Per-DAG read bypass discloses co-located DAGs' source via GET /api/v2/dagSources/{dag_id}
published 4mo ago modified 8d ago also BIT-airflow-2026-49296 , EUVD-2026-42027 , GHSA-4fh7-7jx4-8f6c , PYSEC-2026-2083
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
Before apache-airflow 3.3.0, a user authorized to read one Dag could disclose the source of other Dags co-located in the same source file. `GET /api/v2/dagSources/{dag_id}` — and the equivalent Dag-source view in the UI — returned the entire source file without redacting Dags the caller was not authorized to read, bypassing per-DAG read authorization. Deployments that co-locate multiple Dags in a single file and rely on per-DAG access control to limit source visibility are affected; single-Dag-per-file deployments are not. Upgrade to apache-airflow 3.3.0 or later.
Patch / fix
- pypi apache-airflow 3.3.0
- bitnami airflow 3.3.0
- Apache Software Foundation Apache Airflow 3.3.0
- github.com/apache/airflow@992e602 commit
- github.com/apache/airflow#67662 pull request
- github.com/apache/airflow/releases/tag/3.3.0 release
Is CVE-2026-49296 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4mo ago
Exploit prediction
0.60% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| OSV | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | apache-airflow | <3.3.0 |
3.3.0 |
| bitnami | airflow | <3.3.0 |
3.3.0 |
Affected products
- Apache Software Foundation Apache Airflow
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
References
-
github.com
/apache/airflow/pull/67662
patch, web, issue-tracking
-
github.com
/apache/airflow/commit/992e602015b5e9a3fd297e18047cff9d85094c95
web
-
lists.apache.org
/thread/qqv41t3oydkn9o14r2rfz1wkdrsp5jzn
vendor-advisory, web, mailing-list, advisory
-
openwall.com
/lists/oss-security/2026/07/07/5
web, mailing-list, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-49296
advisory, web
-
github.com
/apache/airflow
package
-
github.com
/apache/airflow/releases/tag/3.3.0
web
-
github.com
/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-2083.yaml
web
-
github.com
/advisories/GHSA-4fh7-7jx4-8f6c
advisory
Sources
- CVE List CVE-2026-49296
- GitHub Advisory GHSA-4fh7-7jx4-8f6c
- NVD CVE-2026-49296
- OSV BIT-airflow-2026-49296
- OSV PYSEC-2026-2083
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