RCE in Flowiseai Flowise
CVE-2026-46442
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 arbitr…
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.030 (85.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Flowiseai Flowise — versions < 3.1.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-46442?
- CVE-2026-46442 is a critical-severity vulnerability in Flowiseai Flowise, classified under Code Injection. CVSS score: 9.9/10. Published 2026-06-08.
- How severe is CVE-2026-46442?
- Critical severity. CVSS v3 base score is 9.9 out of 10.
- Is CVE-2026-46442 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.