Description
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
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OTRS GmbH (former OTRS AG) | OTRS | 8.0.x, 2023.x, 2024.x, 2025.x, 2026.x – ≤ 2026.6.x | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | znuny | No fix yet | — |
| Ubuntu 26.04 LTS | znuny | No fix yet | — |
| Ubuntu 24.04 LTS | znuny | No fix yet | — |
| Ubuntu 22.04 LTS | otrs2 | No fix yet | — |
| Ubuntu 20.04 LTS | otrs2 | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | otrs2 | No fix yet | — |
| Ubuntu 16.04 LTS | otrs2 | No fix yet | — |
Advisories 1
- WID-SEC-2026-3872 OTRS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 11, 2026