Critical 9.0Published Aug 13, 2026

CVE-2026-73602Flowise before 3.1.3 Sandbox Escape to RCE

Updated under an hour ago (2026-10-19 11:10 UTC)

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It affects FlowiseAI Flowise. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for FlowiseAI Flowise

Exploited in the last 30 days

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: 9.0 CRITICAL (v4.0, CNA)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
Weakness (CWE): CWE-95
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Aug 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

FlowiseAI Flowise flowiseai:flowise (from the name)	before 3.1.3; 3.1.3 not affected	CNA record
flowiseai flowise flowiseai:flowise	before 3.1.3	NVD

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-rqh4-rxw3-93rpvendor-advisory, exploit
https://github.com/FlowiseAI/Flowise/commit/4211bfc8f15746be4019bba557e29a7ba83d54c5patch, broken-link
https://www.vulncheck.com/advisories/flowise-before-sandbox-escape-to-rcethird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.