CVE-2026-55255
CRITICAL
NVD
CVSS Score
9.9
Severity
CRITICAL
Published
Jun 23, 2026
Vendor
unknown
Description
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, an Insecure Direct Object Reference (IDOR) vulnerability in /api/v1/responses endpoint allows an authenticated attacker to execute any flow belonging to another user by specifying the victim's flow ID in the request. This vulnerability is fixed in 1.9.2.