CVE-2026-33053CWE-639

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

Medium · published March 20, 2026

CVSS v4.0
6.1
EPSS
1%
Percentile
44.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:L
EPSS
0.00544 · 44.9th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-03-20T06:53Z
EPSS history
Timeline
  • 20 MAR 06:53Z
    Langflow has Missing Ownership Verification in API Key Deletion (IDOR)
    cvelistv5