CVE-2026-40690: Apache Airflow: Assets graph view bypasses DAG level access control displaying unrelated topologies and all DAGs names to unauthorized users
This Apache advisory covers CVE-2026-40690 in Apache Airflow.
- CVE-2026-40690
Key facts
- Vendor rating
- Medium, CVSS 4.3
- CISA KEV
- Not listed (catalogue checked )
- Affected
- Apache Airflow before 3.0.0; Apache Airflow 3.0.0 before 3.2.1
- Fixed in
- 3.0.0, 3.2.1
- Source published
- Source revised
- Listed by VulniPulse
- Record changed
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
The asset dependency graph did not restrict nodes by the viewer's DAG read permissions: a user with read access to at least one DAG could browse the asset graph for any other asset in the deployment and learn the existence and names of DAGs and assets outside their authorized scope.
Users are recommended to upgrade to version 3.2.1, which fixes this issue.
Affected product named by the advisory: Apache Airflow.
Text from the source record.
- Apache Airflow before 3.0.0
- Apache Airflow 3.0.0 before 3.2.1
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2026-40690
Upgrade to a fixed release named by Apache:
- 3.0.0
- 3.2.1
Vendor guidance
- Users are recommended to upgrade to version 3.2.1, which fixes this issue.
Workarounds
- The asset dependency graph did not restrict nodes by the viewer's DAG read permissions: a user with read access to at least one DAG could browse the asset graph for any other asset in the deployment and learn the existence and names of DAGs and assets outside their authorized scope.
Support dates for the fixed release lines
- Apache Airflow 3.0: support ended
- Apache Airflow 3.2: support ended
More Apache Software Foundation advisories
CVE-2026-40913Nov 9, 2026Apache Airflow's public Import Errors API returns the raw parse-failure stack trace to anyCVE-2026-50204Nov 9, 2026Apache Airflow's audit log stored Connection and Variable secret values in cleartextCVE-2026-68982Nov 9, 2026Apache Airflow's CeleryExecutor ran callback workloadsCVE-2026-76185Nov 9, 2026Apache Airflow's Task SDK secret cache built its keys from the team name and secret idCVE-2026-86829Nov 9, 2026Apache Airflow's scheduler fully deserializes XCom values written by task codeCVE-2026-82337Nov 9, 2026Apache Airflow rebuilt deadline alert fields through generic deserialization
Apache Software Foundation advisories, April 2026All Apache Software Foundation advisories
Get an email when Apache Airflow publishes the next one.
See Apache Airflow's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).
iPhone and Android apps · New on the App Store
Monitor future Apache Software Foundation CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.
