PT-2026-83334

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.11.1 Description An authenticated attacker can execute arbitrary operating system commands within the server process. This occurs by saving a flow containing a crafted value in the type field and...

Langflow 1.10.0 Remote Code Execution

Langflow versions 1.10.0 and below are susceptible to unauthenticated remote code execution. By chaining /api/v1/autologin with /api/v1/validate/code, a remote unauthenticated attacker can send crafted HTTP requests to execute arbitrary code. frozenstringliteral: true This module requires...

Exploit for Code Injection in Langflow

CVE-2026-9198 - IBM Langflow OSS Unauthenticated Remote Code...

Exploit for Eval Injection in Langflow

CVE-2026-33017 Langflow RCE ★ CVE-2026-33017 Langflow Remote...

Exploit for Path Traversal in Langflow

This post is a research article published by EQSTLabhttps://g...

CVE-2026-19875

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to overwrite administrator email information and abuse the server as an outbound relay due to missing authentication for the registration endpoint...

CVE-2026-19875 Unauthenticated Registration POST Endpoint Permits Admin Email Overwrite and Outbound Relay Abuse in Langflow

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to overwrite administrator email information and abuse the server as an outbound relay due to missing authentication for the registration endpoint...

CVE-2026-19875 Unauthenticated Registration POST Endpoint Permits Admin Email Overwrite and Outbound Relay Abuse in Langflow

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to overwrite administrator email information and abuse the server as an outbound relay due to missing authentication for the registration endpoint...

EUVD-2026-62606

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to overwrite administrator email information and abuse the server as an outbound relay due to missing authentication for the registration endpoint...

CVE-2026-19875

IBM Langflow OSS versions 1.0.0 through 1.10.0 contain an authentication bypass in the POST /api/v2/registration/ endpoint (CWE-306). An unauthenticated remote attacker can overwrite the server's registered admin email address and trigger outbound telemetry calls, enabling the instance to be abus...

CVE-2026-19875: Missing Authentication for Critical Function

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to overwrite administrator email information and abuse the server as an outbound relay due to missing authentication for the registration endpoint...

Security Bulletin: Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation

Summary A vulnerability allowed unauthenticated attackers to achieve remote code execution on default-configured instances. The vulnerability combined two distinct issues: an unauthenticated endpoint that issued superuser bearer tokens to any network caller, and a code validation endpoint that...

Security Bulletin: Unauthenticated Registration POST Endpoint Permits Admin Email Overwrite and Outbound Relay Abuse in Langflow

Summary The POST /api/v2/registration/ endpoint in affected versions lacked authentication requirements, allowing unauthenticated attackers to overwrite the server's registered admin email address and trigger outbound telemetry calls to external servers, enabling the Langflow instance to be abuse...

Security Bulletin: Code Injection Vulnerability in Code Validation Endpoint

Summary A code injection vulnerability was identified in the code validation endpoint that allowed authenticated users to execute arbitrary code on the server. The vulnerability existed in the validation logic which compiled and executed function definitions to check for import errors. Attackers...

CVE-2026-19297

IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper restriction of excessive authentication attempts...

EUVD-2026-58475

IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper restriction of excessive authentication attempts...

CVE-2026-19297

IBM Langflow OSS 1.0.0–1.9.6 is affected by CVE-2026-19297 due to CWE-307: insufficient restriction of excessive authentication attempts, enabling a remote attacker to obtain unauthorized access to user accounts. The IBM Security Bulletin notes a rate-limiting mechanism for POST /api/v1/login, co...

CVE-2026-19297

IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper restriction of excessive authentication attempts...

CVE-2026-19297 Insufficient Authentication Brute Force Protection on Login Endpoint

IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper restriction of excessive authentication attempts...

CVE-2026-19297 Insufficient Authentication Brute Force Protection on Login Endpoint

IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper restriction of excessive authentication attempts...