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Critical Langflow Flaws Could Let Unauthenticated Attackers Run Code on Servers

Published Nov 2, 2026

Two critical flaws in Langflow could let a remote attacker with no account bypass authentication or run arbitrary code, IBM said last week.

Langflow is an open-source tool for building AI agents and workflows, and its vulnerability reports go to IBM. Every release from 1.0.0 through 1.12.8 has the flaws, and the only fix is version 1.13.0.

Neither flaw is in CISA's Known

Affected AI Products

langflow ai agent
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