---
id: CVE-2026-55186
aliases:
  - GHSA-68wq-phq7-p2vg
title: >-
  MultiFactor Authentication for SilverStripe can bypass MFA during password
  reset flow
summary: >-
  MultiFactor Authentication for SilverStripe can bypass MFA during password
  reset flow
severity: medium
cvss: 4.2
cwe:
  - CWE-288
vendor: silverstripe
product: silverstripe/mfa
ecosystem: composer
affected:
  - silverstripe/mfa < 6.0.0
patched:
  - silverstripe/mfa 6.0.0
published: '2026-10-29'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T20:48:46Z'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-68wq-phq7-p2vg'
references:
  - url: >-
      https://github.com/silverstripe/silverstripe-mfa/security/advisories/GHSA-68wq-phq7-p2vg
  - url: 'https://github.com/silverstripe/silverstripe-mfa/releases/tag/6.0.0'
  - url: 'https://www.silverstripe.org/download/security-releases/cve-2026-55186'
  - url: >-
      https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/mfa/CVE-2026-55186.yaml
  - url: 'https://github.com/advisories/GHSA-68wq-phq7-p2vg'
tags:
  - ghsa
  - composer
ingestedAt: '2026-10-29T16:38:25.976Z'
---

## Overview

### Impact
In CMS 5, the password reset flow let a user with multi-factor authentication enabled change their password and get a logged-in session before completing multi-factor authentication. Exploiting this requires access to the user's email account. CMS 6 is not affected.

## Affected packages

- `silverstripe/mfa < 6.0.0`

## Remediation

Upgrade to a patched release:

- `silverstripe/mfa 6.0.0`