CVE-2026-40690Disclosure(apache / airflow)

LOWCVSS 4.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-1220

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • airflow

Threat summary

  • 3 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 3 classified signals
  • Peaked 2d ago at 1 mentions (2026-04-24); latest day: 1
  • 3 total mentions across 3 days

Affected systems

Vendors
Products
airflow

Deep dive

Activity timeline3 mentions / 3d
00111Mentions · 2026-04-24: 1Mentions · 2026-04-25: 1Mentions · 2026-04-28: 1Technical Details · 2026-04-25: 1Technical Details · 2026-04-28: 104-2404-2504-28
Signal classification1 categories
Disclosure
3100.0%
Referenced assets4 URLs
Full discourse3 posts
  • Open Source Security mailing list@oss_security
    Disclosure

    Apache Airflow CVE-2026-38743: Dags endpoint might provide access to otherwise inaccessible entities https://www.openwall.com/lists/oss-security/2026/04/24/3 CVE-2026-40690: Assets graph view bypasses DAG level access control displaying unrelated topologies and names to unauthorized users https://www.openwall.com/lists/oss-security/2026/04/24/4

    Post summary

    Two new Apache Airflow CVEs are disclosed, allowing unauthorized users to access restricted entities via the Dags endpoint and graph view, but no exploitation code, PoC, or patch information is provided.

    00000163
    4.5K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-40690 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 a… https://www.cve.org/CVERecord?id=CVE-2026-40690

    Post summary

    The tweet announces that CVE-2026-40690 allows users with read access to a DAG to explore the asset dependency graph, indicating a disclosed access‑control flaw, but no exploit or patch information is included.

    0000077
    57.2K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-40690 Unauthorized Asset Dependency Graph Visibility in Airflow Prior to Version 3.2.1 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-40690

    Post summary

    The text announces the CVE and provides a link to additional details, but offers no information on exploitation, remediation, or technical specifics.

    0000027
    4.0K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appapacheairflow---

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