# Duplicate Advisory: INVITED users auto-promoted via SSO email match (invite-token bypass)

Source: https://junglewise.ai/threats/duplicate-advisory-invited-users-auto-promoted-via-sso-email-match-d290aa10  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-26  
License: CC BY 4.0 with a link back

Severity: high · CVSS 7.7 · Published 2026-09-26

### Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-vf3j-89vf-r697. This link is maintained to preserve external references.

### Original 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.

Technologies: [flowise (npm)](https://junglewise.ai/threats/technologies/flowise). Vendors: [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** High severity, with a CVSS score of 7.7, published 26 September 2026.

**Which products and versions are affected?** flowise (npm) <= 3.1.4, SEMVER:introduced=0,last_affected=3.1.4.

**Is there a fix for This vulnerability?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected?** Check whether you run flowise (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- flowise (npm) <= 3.1.4, SEMVER:introduced=0,last_affected=3.1.4

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