Authentication Bypass Vulnerability in Apache Airflow
CVE-2026-46764

4.3MEDIUM

Key Information:

Vendor

Apache
Status
Apache Airflow
Vendor
CVE Published:
1 June 2026

What is CVE-2026-46764?

A configuration oversight in Apache Airflow allows authenticated users with permissions for specific audit logs to potentially access audit-log entries from other Directed Acyclic Graphs (DAGs) by merely guessing or sequentially enumerating the numeric event log IDs. This flaw undermines the intended per-DAG permissions designed to safeguard against unauthorized data access. It is critical for users relying on per-DAG audit log scoping to update to Apache Airflow version 3.2.2 or later to mitigate this vulnerability.

Affected Version(s)

Apache Airflow 0 < 3.2.2

References

https://github.com/apache/airflow/pull/67112
patch
https://lists.apache.org/thread/ctrbj7q3m86g4qxmo9ponojgm...
vendor-advisory

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Stoyan Stoyanov Trendafilov (trstoyan), independent security researcher
Pierre Jeambrun (@pierrejeambrun)
.