---
id: CVE-2026-77146
title: >-
  The extension's invitation controller fails to stop processing after
  redirecting on invalid input (missing hash, non-existent, disabled, or deleted
  users), allowing an unauthenticated attacker to set a new password for and
  re-enable an a…
summary: >-
  The extension's invitation controller fails to stop processing after
  redirecting on invalid input (missing hash, non-existent, disabled, or deleted
  users), allowing an unauthenticated attacker to set a new password for and
  re-enable an a…
severity: none
cwe:
  - CWE-862
published: '2026-08-25'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T23:10:00.143'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77146'
references:
  - url: 'https://typo3.org/security/advisory/typo3-ext-sa-2026-024'
    label: f4fb688c-4412-4426-b4b8-421ecf27b14a
tags:
  - nvd
ingestedAt: '2026-09-28T23:23:00.544Z'
---

## Overview

The extension's invitation controller fails to stop processing after redirecting on invalid input (missing hash, non-existent, disabled, or deleted users), allowing an unauthenticated attacker to set a new password for and re-enable an arbitrary existing frontend user account. This vulnerability is only present in the 8.x versions of the extension.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.