3.1

CVE-2026-40963: apache software foundation apache airflow Improper Authorization

CVSS: 3.1v3.1LowAnalyzed
AliasesGHSA-gprj-xvq8-w53qBIT-airflow-2026-40963PYSEC-2026-2349
Published 01-06-2026Last modified 01-06-2026
Open JSON

Vulnerability summary

CVE-2026-40963 is a low (CVSS 3.1) Improper Authorization vulnerability in apache software foundation apache airflow. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 42.8% of scored vulnerabilities.

Overall risk
13/100
0100
Low · default modelHow is this calculated?
CVSS score
3.1/10
010
Low · v3.1 (CVE.org)
EPSS score
0.52%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 01-06-2026
    PublishedVulnerability first disclosed.
  2. 01-06-2026
    Last modifiedVulnerability information updated.

Description

The structure_data endpoint in the Airflow UI returned external dependency graph nodes for linked Dags without checking whether the caller had read permission on those linked Dags. An authenticated UI/API user authorized for one Dag could enumerate linked Dag IDs and dependency metadata for other Dags they were not authorized to read. Affects deployments that rely on per-Dag read scoping to keep Dag dependency topology private across teams. Users are advised to upgrade to `apache-airflow` 3.2.2 or later.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.52%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

+0.04 pp

From 0.48% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.52%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
Apache software foundation1 product
PyPI1 product
  • apache-airflow≥ 3.0.0, < 3.2.2

3 vendors · 3 products

References

7 links