Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Flowiseai | Flowise | < 3.1.3 |
Related Weaknesses (CWE)
References
- https://github.com/FlowiseAI/Flowise/commit/4211bfc8f15746be4019bba557e29a7ba83dBroken Link
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-rqh4-rxw3-93rpExploitVendor Advisory
- https://www.vulncheck.com/advisories/flowise-before-sandbox-escape-to-rceThird Party Advisory
FAQ
What is CVE-2026-73602?
CVE-2026-73602 is a vulnerability with a CVSS score of 9.9 (CRITICAL). 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. Atta...
How severe is CVE-2026-73602?
CVE-2026-73602 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-73602?
Check the references section above for vendor advisories and patch information. Affected products include: Flowiseai Flowise.