---
id: CVE-2026-8793
title: >-
  PaperCut NG/MF does not properly restrict excessive authentication attempts
  within its login component
summary: >-
  PaperCut NG/MF does not properly restrict excessive authentication attempts
  within its login component. An unauthenticated remote attacker can exploit
  this vulnerability to perform unrestricted brute-force or credential-stuffing
  attacks …
severity: none
cwe:
  - CWE-307
published: '2026-08-03'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T16:03:59.890'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-8793'
references:
  - url: >-
      https://www.papercut.com/kb/Main/papercut-ng-mf-security-bulletin-3-aug-2026/
    label: eb41dac7-0af8-4f84-9f6d-0272772514f4
tags:
  - nvd
  - exploit-available
epss: 0.00683
epssPercentile: 0.50397
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/H4zaz/CVE-2026-8793'
  checkedAt: '2026-09-25T08:21:20.358Z'
exploitAvailable: true
ingestedAt: '2026-09-09T16:14:05.511Z'
---

## Overview

PaperCut NG/MF does not properly restrict excessive authentication attempts within its login component. An unauthenticated remote attacker can exploit this vulnerability to perform unrestricted brute-force or credential-stuffing attacks without triggering account lockout or rate-limiting mechanisms in some configurations.

## Remediation

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