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Langflow OSS (1.0.0-1.12.4)

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high advisory

IBM Langflow OSS Authorization Bypass Vulnerability

IBM Langflow OSS versions 1.0.0 through 1.12.4 are vulnerable to an authorization bypass in message endpoints that enables unauthorized session hijacking, message deletion, and prompt injection.

Langflow OSS web-application authentication-bypass authorization-bypass cve-2026-107366