---
id: CVE-2026-41076
title: 'RT is an open source, enterprise-grade issue and ticket tracking system'
summary: >-
  RT is an open source, enterprise-grade issue and ticket tracking system.
  Versions 5.0.9 and prior in addition to 6.0.0 through 6.0.2 contain an
  authentication bypass vulnerability in RT installations that use LDAP/AD for
  user authenticat…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-287
published: '2026-05-22'
updated: '2026-07-23'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-41076'
references:
  - url: 'https://github.com/bestpractical/rt/releases/tag/rt-5.0.10'
    label: security-advisories@github.com
  - url: 'https://github.com/bestpractical/rt/releases/tag/rt-6.0.3'
    label: security-advisories@github.com
  - url: >-
      https://github.com/bestpractical/rt/security/advisories/GHSA-3w28-fmcr-mjjx
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00658
epssPercentile: 0.4939
ingestedAt: '2026-07-23T11:17:34.319Z'
---

## Overview

RT is an open source, enterprise-grade issue and ticket tracking system. Versions 5.0.9 and prior in addition to 6.0.0 through 6.0.2 contain an authentication bypass vulnerability in RT installations that use LDAP/AD for user authentication. Under certain LDAP server configurations, an attacker may be able to authenticate as any LDAP-backed RT user without supplying valid credentials.  This issue has been fixed in versions 5.0.10 and 6.0.3. If developers are unable to upgrade immediately, they can temporarily work around this issue by reviewing their LDAP server's authentication policy to ensure it rejects unauthenticated bind attempts. Upgrading RT remains the recommended fix.

## Remediation

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