CVE-2026-46764: CWE-639: Authorization Bypass Through User-Controlled Key in Apache Software Foundation Apache Airflow
Apache Airflow versions prior to 3.2.2 contain an authorization bypass vulnerability in the Event Log detail endpoint. Authenticated users with audit-log read permission scoped to one Dag could access audit-log entries of other Dags by enumerating numeric event log IDs. This affects deployments relying on per-Dag audit-log scoping. The issue is addressed in Apache Airflow 3.2.2 and later versions.
AI Analysis
Technical Summary
CVE-2026-46764 is an authorization bypass vulnerability in Apache Airflow's API v2 Event Log detail endpoint. The endpoint GET /api/v2/eventLogs/{event_log_id} fetches audit-log entries by numeric ID after a generic audit-log permission check, without enforcing per-Dag scoping. Meanwhile, the collection endpoint GET /api/v2/eventLogs applies per-Dag scoping correctly. This discrepancy allows an authenticated user with audit-log read permission for a single Dag to retrieve audit-log entries for other Dags by guessing or enumerating event log IDs. This vulnerability affects deployments that rely on per-Dag audit-log scoping and is fixed in Apache Airflow version 3.2.2 and later.
Potential Impact
An authenticated user with limited audit-log read permissions can access audit-log entries from other Dags beyond their authorization scope. This leads to unauthorized disclosure of audit-log information, potentially exposing sensitive operational details. The vulnerability does not affect integrity or availability, only confidentiality of audit logs.
Mitigation Recommendations
Upgrade Apache Airflow to version 3.2.2 or later, where this authorization bypass vulnerability is fixed. No other mitigations are specified. Patch status is confirmed by the vendor advisory recommending upgrade to 3.2.2+.
CVE-2026-46764: CWE-639: Authorization Bypass Through User-Controlled Key in Apache Software Foundation Apache Airflow
Description
Apache Airflow versions prior to 3.2.2 contain an authorization bypass vulnerability in the Event Log detail endpoint. Authenticated users with audit-log read permission scoped to one Dag could access audit-log entries of other Dags by enumerating numeric event log IDs. This affects deployments relying on per-Dag audit-log scoping. The issue is addressed in Apache Airflow 3.2.2 and later versions.
CVSS v3.1
Score 4.3medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-46764 is an authorization bypass vulnerability in Apache Airflow's API v2 Event Log detail endpoint. The endpoint GET /api/v2/eventLogs/{event_log_id} fetches audit-log entries by numeric ID after a generic audit-log permission check, without enforcing per-Dag scoping. Meanwhile, the collection endpoint GET /api/v2/eventLogs applies per-Dag scoping correctly. This discrepancy allows an authenticated user with audit-log read permission for a single Dag to retrieve audit-log entries for other Dags by guessing or enumerating event log IDs. This vulnerability affects deployments that rely on per-Dag audit-log scoping and is fixed in Apache Airflow version 3.2.2 and later.
Potential Impact
An authenticated user with limited audit-log read permissions can access audit-log entries from other Dags beyond their authorization scope. This leads to unauthorized disclosure of audit-log information, potentially exposing sensitive operational details. The vulnerability does not affect integrity or availability, only confidentiality of audit logs.
Mitigation Recommendations
Upgrade Apache Airflow to version 3.2.2 or later, where this authorization bypass vulnerability is fixed. No other mitigations are specified. Patch status is confirmed by the vendor advisory recommending upgrade to 3.2.2+.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-05-18T15:42:29.004Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1d4e75e29bf47b50cd4a16
Added to database: 06/01/2026, 09:18:45 UTC
Last enriched: 07/10/2026, 09:53:42 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 84
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