CVE-2026-9202CWE-306

Unauthenticated User Registration Could Lead to Remote Code Execution

Critical · published July 17, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
42.1
In the wild
Unconfirmed
What it is

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to create unlimited user accounts on any Langflow instance; when NEW_USER_IS_ACTIVE=true (documented deployment option), newly created accounts are immediately active and can authenticate to reach RCE endpoints, bypassing the need for AUTO_LOGIN.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00502 · 42.1th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-07-17T17:33Z
EPSS history
Timeline
  • 17 JUL 17:33Z
    Unauthenticated User Registration Could Lead to Remote Code Execution
    cvelistv5