---
id: CVE-2026-103526
title: >-
  In Thelia v2.6.0, both the administrative login and forgotten password
  endpoints return different responses for invalid usernames and incorrect
  passwords, allowing unauthenticated attackers to enumerate valid administrator
  accounts
summary: >-
  In Thelia v2.6.0, both the administrative login and forgotten password
  endpoints return different responses for invalid usernames and incorrect
  passwords, allowing unauthenticated attackers to enumerate valid administrator
  accounts. Beca…
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-204
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T15:17:06.073'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103526'
references:
  - url: 'https://kb.cert.org/vuls/id/162329'
    label: cret@cert.org
tags:
  - nvd
ingestedAt: '2026-10-12T15:55:08.154Z'
---

## Overview

In Thelia v2.6.0, both the administrative login and forgotten password endpoints return different responses for invalid usernames and incorrect passwords, allowing unauthenticated attackers to enumerate valid administrator accounts. Because the endpoint also lacks rate limiting or other protections against repeated authentication attempts, username enumeration can be performed efficiently at scale.

## Remediation

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