CVE-2026-9202

Status: AnalyzedCritical (9.8)—

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.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base score: 9.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.50%
Percentile among all scored CVEs: 41
Score date: 10/4/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1190 Exploit Public-Facing Applicationinitial access95 %
Primary impactT1078.001 Default Accountsstealth · persistence · privilege escalation · initial access90 %
Secondary impactT1059 Command and Scripting Interpreterexecution85 %

AV:N/PR:N/UI:N indica exposición web sin autenticación (T1190). Creación de cuentas activas permite autenticación directa (T1078.001) y acceso a endpoints RCE (T1059).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account Management Vulnerability Scanning Restrict Web-Based Content Password Policies Network Segmentation Multi-factor Authentication

Affected technologies (1)

Langflow — Langflow

CWEs

CWE-306

References

https://www.ibm.com/support/pages/node/7278929

Raw JSON (NVD)

Show

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