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OpenAdvisories
High · 8.8 CVE-2026-76059 EUVD-2026-75801GHSA-xffc-qfh4-r9p6

Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards

Published Sep 10, 2026 · Updated Sep 12, 2026 · Assigned by ibm

Description

IBM Langflow OSS 1.0.0 through 1.11.5 An attacker who could submit custom component source code could bypass the static security scanner by crafting an annotated class-body assignment that resolved to a dangerous callable through alias tracking; the resolved value was never checked against the dangerous callable blocklist due to the logic error. If the crafted component reached the runtime execution path, the attacker could cause arbitrary operating system commands to execute on the server in-process, with the privileges of the running service.

Affected products

VendorProductAffectedFixed
IBM Langflow OSS 1.0.0 – ≤ 1.11.5 —

Advisories 2

References