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.

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 ha…

EPSS: 0.003 (16.6th percentile) — read the EPSS interpretation.

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.

Affected products

Flowiseai Flowise — versions < 3.1.2

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
security-advisories@github.com (x_refsource_CONFIRM, 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.