CVE-2026-34538

Published: Apr 09, 2026 Last Modified: Apr 15, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,5
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none

Description

AI Translation Available

Apache Airflow versions 3.0.0 through 3.1.8 DagRun wait endpoint returns XCom result values even to users who only have DAG Run read permissions, such as the Viewer role.This behavior conflicts with the FAB RBAC model, which treats XCom as a separate protected resource, and with the security model documentation that defines the Viewer role as read-only.

Airflow uses the FAB Auth Manager to manage access control on a per-resource basis. The Viewer role is intended to be read-only by default, and the security model documentation defines Viewer users as those who can inspect DAGs without accessing sensitive execution results.

Users are recommended to upgrade to Apache Airflow 3.2.0 which resolves this issue.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 8 Days)

668

Exposure of Resource to Wrong Sphere

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Other
Potential Impacts:
Read Application Data Modify Application Data Varies By Context
Applicable Platforms
All platforms may be affected
View CWE Details
Application

Airflow by Apache

Product Information
Vendor Apache
Product Airflow
Version Range Affected
From 3.0.0 (inclusive)
To 3.2.0 (exclusive)
cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
http://www.openwall.com/lists/oss-security/2026/04/09/9
http://www.openwall.com/lists/oss-security/2026/04/09/9
https://github.com/apache/airflow/pull/64415
https://github.com/apache/airflow/pull/64415
https://lists.apache.org/thread/9mq3msqhmgjwdzbr6bgthj4brb3…
https://lists.apache.org/thread/9mq3msqhmgjwdzbr6bgthj4brb3oz9fl