What is CVE-2026-70636?

CVE-2026-70636 is a high-severity vulnerability in Flowiseai Flowise, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-08-06.

How severe is CVE-2026-70636?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Flowiseai Flowise

CVE-2026-70636

Flowise through 3.1.4 contains an authentication bypass vulnerability that allows unauthenticated attackers to access the OAuth2 credential refresh endpoint by exploiting prefix-based whitelist matching in the authentication middleware def…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Flowiseai Flowise — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (technical-description, exploit)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-70636?: CVE-2026-70636 is a high-severity vulnerability in Flowiseai Flowise, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-08-06.
How severe is CVE-2026-70636?: High severity. CVSS v3 base score is 7.5 out of 10.