# CVE-2026-48188: znuny: An improper Input Validation vulnerability in OTRS or ((OTRS)) Community Edition database layer module allows an unau...

CVE-2026-48188 is fixed in znuny on 1 platform by DEBIAN-CVE-2026-48188 (version 6.5.25-1), released June 1, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2026-48188
- Priority: Urgent
- CVSS: 9.1 (critical)
- EPSS: 0.0074
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 1, 2026

## Description

An improper Input Validation vulnerability in OTRS or ((OTRS)) Community Edition database layer module allows an unauthenticated SQL injection which can lead to an authentication bypass. This issue only affects the system if the MySQL/MariaDB server is configured with the NO_BACKSLASH_ESCAPES SQL mode.  This issue affects OTRS:     *  7.0.X   *  8.0.X   *  2023.X   *  2024.X   *  2025.X   *  2026.X before 2026.4.X   *  (OTRS)) Community Edition: 6.0.x  Products based on the ((OTRS)) Community Edition also very likely to be affected

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | znuny Debian 14 | 6.5.25-1 | [DEBIAN-CVE-2026-48188](https://patchblox.com/security/data/fix/linux/debian-cve-2026-48188.md) | Jun 1, 2026 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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