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Critical · 9.0 CVE-2026-73602 EUVD-2026-57806GHSA-56h4-p63w-w4wm

Flowise before 3.1.3 Sandbox Escape to RCE

Published Aug 13, 2026 · Updated Aug 13, 2026 · Assigned by VulnCheck

Description

Flowise before 3.1.3 contains a sandbox escape vulnerability in the vm2 JavaScript sandbox that allows authenticated users to execute arbitrary code by exploiting moment locale validation bypass. Attackers can craft a fake String object with a match function that bypasses path traversal checks to load and execute malicious JavaScript files stored in the document store outside the sandbox.

Affected products

VendorProductAffectedFixed
FlowiseAI Flowise < 3.1.3 3.1.3

Advisories 1

References