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CVE-2026-33053

MEDIUM CVSS 4.0: 6.1 EPSS 0.02%
Updated Mar 20, 2026
Langflow
Parameter Value
CVSS 6.1 (MEDIUM)
Affected Versions before 1.9.0
Fixed In 1.9.0
Type CWE-639 (Authorization Bypass)
Vendor Langflow
Public PoC No

Langflow is a tool for building and deploying AI-powered agents and workflows. In versions prior to 1.9.0, the delete_api_key_route() endpoint accepts an api_key_id path parameter and deletes it with only a generic authentication check (get_current_active_user dependency). However, the delete_api_key() CRUD function does NOT verify that the API key belongs to the current user before deletion.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Langflow Langflow
cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*
1.9.0