CVE-2026-8505

Published Jul 17, 2026

Last updated a day ago

Overview

Description
IBM Langflow OSS 1.0.0 through 1.10.0 has a vulnerability in Langflow's webhook authentication logic allows unauthenticated users to trigger the execution of any flow. The system incorrectly bypasses API key validation when the WEBHOOK_AUTH_ENABLE configuration is set to False (which is the default setting). This allows a remote attacker who knows a flow's UUID to execute it as if they were the owner, potentially leading to Remote Code Execution (RCE).
Source
psirt@us.ibm.com
NVD status
Modified
Products
langflow

Risk scores

CVSS 3.1

Type
Secondary
Base score
9.8
Impact score
5.9
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
CRITICAL

Weaknesses

nvd@nist.gov
CWE-306
134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-306

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.