CVE-2026-40690

Name: CVE-2026-40690
Creator: NVD / NIST
Published: 2026-04-24T13:16:21.443+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.35%

Last modified Jun 17, 2026

CVE-2026-40690 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.35%

27.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1220

Affected Software

Vendor	Product	Versions
Apache	Airflow	< 3.2.1

References

https://github.com/apache/airflow/pull/65273Issue Tracking, Patch
https://lists.apache.org/thread/bqt7y4g2cpj396b0sd20lv510ff19ndlMailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/04/24/4Mailing List, Third Party Advisory

Timeline

Published: Apr 24, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-40690?

How severe is CVE-2026-40690?

CVE-2026-40690 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2026-40690?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-40690?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST