Vulnerability · Published Sep 26, 2026 · Assigned by VulnCheck

CVE-2026-100607Flowise through 3.1.4 Authentication Bypass via Email-Only SSO

High 7.7

In plain English

A high-severity improper authentication in Flowise from FlowiseAI. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).

Severity (CVSS 3.1)7.7High

Exploit odds (30 days)0.4%top 69.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Flowise through 3.1.4 resolves SSO and local-password users solely by email without storing provider or subject identifier bindings, allowing attackers to authenticate as any existing user by claiming their email at any configured SSO provider. Attackers can gain complete account access including chatflows, credentials, and API keys by authenticating through a different SSO provider or local password than the victim's original registration method.

Affected products (as reported)

Vendor	Product	Versions
FlowiseAI	Flowise	0 – through 3.1.4

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

References

GitHub Security Advisory (GHSA-cffm-583c-vffr) vendor-advisory
VulnCheck Advisory: Flowise through 3.1.4 Authentication Bypass via Email-Only SSO third-party-advisory