OCTOBER 9, 2026
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Case File

CVE-2026-100606

HIGH · CVSS 7.7 EPSS 0.37% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-26 · Last synced 2026-10-09

CyberRota Analysis

AI-Generated

The vulnerability affects Flowise versions up to 3.1.4 in enterprise mode with SSO enabled, allowing an attacker to bypass authentication by using an invited user's email address to gain unauthorized access to the organization. This flaw enables the attacker to activate the account and its associated organization membership without the need for the original invitation token, posing a significant security risk. Organizations utilizing Flowise with SSO should prioritize addressing this vulnerability to prevent potential account takeovers and unauthorized access.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-100606
Severity
HIGH
CVSS
7.7
EPSS
0.37%

Original NVD Description

Flowise through 3.1.4 (Enterprise/platform mode with SSO enabled) contains an authentication bypass in the SSO login path. When an SSO callback arrives with an email matching a user whose status is INVITED, verifyAndLogin (SSOBase.ts:80-94) copies the user record from the database — including the server-stored single-use invitation tempToken — into the data passed to AccountService.register(). The register handler's token lookup, email match, and expiry checks therefore pass trivially against the server's own token instead of a caller-supplied one, and the account and its organization membership are flipped to ACTIVE. As a result, anyone able to authenticate at any configured SSO provider using a pending invitee's email address as the email claim can take over that invitation and obtain the invited user's access to the organization without ever possessing the emailed invitation token, for as long as the invitation is valid (24 hours by default). At the time of the advisory no patched version was available.