---
id: CVE-2026-49442
title: 'Cacti: User Enumeration via Error Messages'
summary: >-
  Cacti is an open source performance and fault management framework. Prior to
  version 1.2.31, a User Enumeration vulnerability allows an attacker to
  identify valid usernames on the Cacti service. When a user attempts to log in,
  the applic…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-204
vendor: Cacti
product: cacti
affected:
  - cacti < 1.2.31
published: '2026-10-23'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T14:45:13.062Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-49442'
references:
  - url: 'https://github.com/Cacti/cacti/security/advisories/GHSA-m7v2-f3xw-3qh7'
    label: 'https://github.com/Cacti/cacti/security/advisories/GHSA-m7v2-f3xw-3qh7'
  - url: 'https://github.com/Cacti/cacti/pull/7166'
    label: 'https://github.com/Cacti/cacti/pull/7166'
  - url: >-
      https://github.com/Cacti/cacti/commit/ab4baf338d65dcaafe1bd97d1e2a310fe0af0e3e
    label: >-
      https://github.com/Cacti/cacti/commit/ab4baf338d65dcaafe1bd97d1e2a310fe0af0e3e
tags:
  - cve.org
ingestedAt: '2026-10-23T15:29:36.881Z'
---

## Overview

Cacti is an open source performance and fault management framework. Prior to version 1.2.31, a User Enumeration vulnerability allows an attacker to identify valid usernames on the Cacti service. When a user attempts to log in, the application returns slightly different error messages depending on whether the provided username exists in the system. When username exists on Cacti, in the response, they see Access Denied! Login failed. When it does not exist on Cacti, they see Access Denied! Login Failed. The only difference between the responses is the capitalization of the letter "f" in the word failed. This issue has been patched in version 1.2.31.

## Affected

- `cacti < 1.2.31`

## Remediation

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