p PatchFirst

CVE-2026-78356

CVE-2026-78356 · Unauthenticated Disclosure of Agent Frontend Configuration

This page contains facts from public vulnerability sources. Check the original advisory before updating.

The OTRS Agent Frontend configuration endpoint can be accessed without authentication. This allows unauthenticated remote users to retrieve internal application configuration that is intended for use by the authenticated Agent Frontend. The exposed information may include configured frontend routes and their associated authorization groups, authentication configuration, enabled product features, third-party integration settings, and other implementation details. The exposed configuration does not directly contain user credentials or provide unauthorized modification of the OTRS configuration. However, the disclosed information may assist an attacker in fingerprinting the affected OTRS installation and identifying enabled functionality or security-relevant configuration that could be used to prepare further attacks. This issue affects OTRS: * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.7.X

CVSS 5.3 · Medium · EPSS 0.3%

Published
Updated

Stack: system

Affected products and versions

  • otrs

    Versions
    • 8.0.x: Affected
    • 2023.x: Affected
    • 2024.x: Affected
    • 2025.x: Affected
    • ≥ 2026.x, ≤ 2026.6.x: Affected (patch)

    No fix published

  • otrs2 Ubuntu:16.04:LTS

    Versions
    • 4.0.10-1
    • 5.0.1-1
    • 5.0.1-2
    • 5.0.2-1
    • 5.0.3-1
    • 5.0.5-1
    • 5.0.6-1
    • 5.0.7-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • otrs2 Ubuntu:18.04:LTS

    Versions
    • 5.0.23-1
    • 5.0.24-1
    • 6.0.1-1
    • 6.0.2-1
    • 6.0.3-1
    • 6.0.4-1
    • 6.0.5-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • otrs2 Ubuntu:20.04:LTS

    Versions
    • 6.0.20-1
    • 6.0.23-2
    • 6.0.24-1
    • 6.0.25-1
    • 6.0.25-2
    • 6.0.25-3
    • 6.0.26-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • otrs2 Ubuntu:22.04:LTS

    Versions
    • 6.0.32-6
    • 6.1.2-1
    • 6.2.1-1
    • 6.2.2-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • znuny Ubuntu:24.04:LTS

    Versions
    • 6.5.3-1
    • 6.5.4-1
    • 6.5.5-1
    • 6.5.6-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • znuny Ubuntu:26.10

    Versions
    • 6.5.18-1
    • 6.5.20-1
    • 6.5.21-1
    • 6.5.22-1
    • 6.5.23-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • znuny Ubuntu:26.04:LTS

    Versions
    • 6.5.15-2
    • 6.5.18-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

Check your server →