CVE-2026-33053
Langflow is Missing Ownership Verification in API Key Deletion (IDOR)
8.8
HIGH
CVSS 3.1
EPSS 0.06%
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.
How to fix CVE-2026-33053
To remediate CVE-2026-33053, upgrade the affected package to a fixed version below.
- —upgrade to 1.7.2 or later
- —upgrade to 1.9.0 or later
Is CVE-2026-33053 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.7.2
- from 0, < 1.9.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |