CVE-2026-33053

HIGH

Langflow has Missing Ownership Verification in API Key Deletion (IDOR)

Title source: cna
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 8.8
EPSS 0.0039
EPSS Percentile 30.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-639
Status published
Products (3)
langflow/langflow < 1.9.0
langflow-ai/langflow < 1.9.0
pypi/langflow 0 - 1.9.0PyPI
Published Mar 20, 2026
Tracked Since Mar 20, 2026