CVE-2026-73602

critical · 9

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.

CVSS

0.8%

EPSS (exploit prob.)

56th

EPSS percentile

2026-08-13

Published

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-95

Affected products

Vendor	Product	Affected versions
flowiseai	flowise	< 3.1.3

Check a specific version with /api/v1/cve/match.

References

https://github.com/FlowiseAI/Flowise/commit/4211bfc8f15746be4019bba557e29a7ba83d54c5
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-rqh4-rxw3-93rp
https://www.vulncheck.com/advisories/flowise-before-sandbox-escape-to-rce

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-73602