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CVE-2026-9202— Unauthenticated User Registration Could Lead to Remote Code Execution

CVSS 9.8 · Critical

Affected Version Matrix 1

VendorProductVersion RangeStatus
IBMLangflow OSS1.0.0≤ 1.10.0affected
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I. Basic Information for CVE-2026-9202

Vulnerability Information
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Vulnerability Title
Unauthenticated User Registration Could Lead to Remote Code Execution
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
IBMLangflow OSS 1.0.0 ~ 1.10.0 cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9202

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III. Intelligence Information for CVE-2026-9202

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Other References for CVE-2026-9202 (1)

Same Patch Batch · IBM · 2026-07-17 · 34 CVEs total

CVE-2026-91359.9 CRITICALPolicies Component Dynamic CodeInput Fields Bypass Custom Component Validation
CVE-2026-88599.9 CRITICALPath Traversal in APIRequest Component via Content-Disposition Header
CVE-2026-86359.9 CRITICALArbitrary Code Execution in Python Interpreter Component
CVE-2026-84819.9 CRITICALRemote Code Execution via Code Validation Endpoint
CVE-2026-84769.9 CRITICALDisk Cache Deserialization Remote Code Execution Vulnerability
CVE-2026-134469.8 CRITICALLangflow is affected by remote code execution, denial of service, path traversal, and expo
CVE-2026-91989.8 CRITICALUnauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation
CVE-2026-91039.8 CRITICALUnauthenticated Superuser Token Issuance via Auto-Login Endpoint
CVE-2026-85059.8 CRITICALAuthentication Bypass in Webhook Endpoints Allowed Unauthorized Flow Execution
CVE-2026-150919.3 CRITICALMultiple Vulnerabilities in IBM Engineering AI hub.
CVE-2026-76678.8 HIGHPath Traversal Vulnerability in API Request Component Content-Disposition Header Processin
CVE-2026-80568.8 HIGHParameter Injection Vulnerability in API Graph Execution Engine
CVE-2026-77558.8 HIGHMCP Server Configuration Validator Bypass via File Upload API
CVE-2026-144998.8 HIGHLangflow is affected by remote code execution, denial of service, path traversal, and expo
CVE-2026-134458.1 HIGHLangflow is affected by remote code execution, denial of service, path traversal, and expo
CVE-2026-134488.1 HIGHLangflow is affected by remote code execution, denial of service, path traversal, and expo
CVE-2026-134738.1 HIGHIBM Storage Protect Client is vulnerable to Heap-Based Buffer Overflow
CVE-2026-97627.8 HIGHIBM® Data Server driver for JDBC and SQLJ is vulnerable to remote code execution when jdbc
CVE-2026-77547.7 HIGHSSRF Protection Configuration Vulnerability
CVE-2026-91717.5 HIGHVulnerabilities in IBM WebSphere Application affects IBM PowerVM Novalink.

Showing top 20 of 34 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Langflow OSS
Same vendor: IBM
Same weakness: CWE-306

V. Comments for CVE-2026-9202

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