What is CVE-2026-41273?

CVE-2026-41273 is a high-severity vulnerability in Flowiseai Flowise, classified under Missing Authentication for Critical Function. CVSS score: 8.2/10. Published 2026-04-23.

How severe is CVE-2026-41273?

High severity. CVSS v3 base score is 8.2 out of 10.

Auth bypass in Flowiseai Flowise

CVE-2026-41273

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, Flowise contains an authentication bypass vulnerability that allows an unauthenticated attacker to obtain OAuth 2.0 access tokens asso…

Vulnerability class: Broken Authentication

EPSS: 0.003 (22.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Flowiseai Flowise — versions < 3.1.0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-41273?: CVE-2026-41273 is a high-severity vulnerability in Flowiseai Flowise, classified under Missing Authentication for Critical Function. CVSS score: 8.2/10. Published 2026-04-23.
How severe is CVE-2026-41273?: High severity. CVSS v3 base score is 8.2 out of 10.