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CVE-2026-119978Published

Flowise through 3.1.4 Custom Function Sandbox Escape RCE via LocalFileStore

Exact source revision recorded 2 Nov 2026 21:57:16 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-119978

Published

Flowise through 3.1.4 contains a sandbox escape vulnerability that allows authenticated users to execute OS commands by abusing allowlisted langchain and mammoth modules when ALLOW_BUILTIN_DEP=true. Attackers can submit JavaScript to /api/v1/node-custom-function that writes a file into the mammoth package via LocalFileStore and requires it, escaping vm2 as the Flowise process user.

Source published
30 Oct 2026 17:28:31 UTC
Source modified
2 Nov 2026 20:53:41 UTC
Observed here
2 Nov 2026 21:57:16 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · 9.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS 3.1 · 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 11 Nov 13:09 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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