CVE-2026-18894

Langflow · Published October 29, 2026

9.8

CVSS v3.1

CRITICAL

Patch availableGet patch

Description

IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote attacker to trigger pre-existing stored Python component code in a public workflow, executing it under the flow owner's runtime context within the server process. This bypasses the intended trust boundary where public execution paths are restricted to server-trusted component code.

Affected Products

Langflow < 1.12.5

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H