What is CVE-2026-33760?

CVE-2026-33760 is a high-severity vulnerability in Langflow-ai Langflow, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2026-06-23.

How severe is CVE-2026-33760?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Langflow-ai Langflow

CVE-2026-33760

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow's /api/v1/monitor router exposes 7 endpoints that perform read, write, and delete operations on user-owned resources — messages, sessio…

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Langflow-ai Langflow — versions < 1.9.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-33760?: CVE-2026-33760 is a high-severity vulnerability in Langflow-ai Langflow, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2026-06-23.
How severe is CVE-2026-33760?: High severity. CVSS v3 base score is 8.8 out of 10.