Vulnerability in Flowiseai Flowise
CVE-2026-46440
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, the checkBasicAuth endpoint validates credentials in plaintext without rate limiting and with direct comparison. This issue has been patched in version 3.1.2.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Flowiseai Flowise — versions < 3.1.2
Weakness classification (CWE)
References
- github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.2 (Product, Release Notes)
- github.com/FlowiseAI/Flowise/security/advisories/GHSA-php6-83fg-gw3g (Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-46440?
- CVE-2026-46440 is a critical-severity vulnerability in Flowiseai Flowise, classified under Insufficiently Protected Credentials. CVSS score: 9.1/10. Published 2026-06-08.
- How severe is CVE-2026-46440?
- Critical severity. CVSS v3 base score is 9.1 out of 10.