CVEs / CVE-2026-46442
CVE-2026-46442: FlowiseAI Flowise vulnerability
- critical 9.9 CVSS 3.1 (NVD)
- EPSS 36.3% chance of exploitation in the next 30 days, higher than 98% of CVEs (30 Oct 2026)
- Last changed at its sources
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Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, POST /api/v1/node-custom-function lacks route-level authorization, allowing any authenticated user or API key to submit arbitrary JavaScript to the Custom JS Function node. When E2B_APIKEY is not configured — the common deployment case — Flowise executes this code inside a NodeVM sandbox. This sandbox can be escaped, allowing an attacker to reach the host process object and execute system commands via child_process. The result is authenticated remote code execution on the Flowise server host. This issue has been patched in version 3.1.2.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| FlowiseAI Flowise | < 3.1.2 | — |
| Product | Affected | Fixed in |
|---|---|---|
| flowise (npm) | before 3.1.2 | 3.1.2 |
Package versions from GHSA-9rvc-vf7m-pgm2.
Exploitation
Not in the CISA Known Exploited Vulnerabilities catalog as of 30 Oct 2026.
Severity
| CVSS 3.1 | 9.9 criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-94 |
References
- CVE-2026-46442 on NVD
- CVE-2026-46442 on OSV
- https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2 Product, Release Notes
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9rvc-vf7m-pgm2 Exploit, Mitigation, Vendor Advisory
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.