# CVE-2026-48188: OTRS SQL injection in database layer module

Source: https://junglewise.ai/threats/cve-2026-48188-otrs-sql-injection-in-database-layer-module  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-01. Updated: 2026-06-01  
License: CC BY 4.0 with a link back

CVE-2026-48188 · Severity: critical · CVSS 9.1 · Published 2026-06-01

A critical vulnerability has been identified in OTRS, a widely used service management and ticketing platform. An attacker can bypass the system's login requirements to gain unauthorized access to sensitive data and administrative functions. This flaw specifically impacts organizations using MySQL or MariaDB databases configured with a specific non-standard setting (NO_BACKSLASH_ESCAPES).

Technologies: [OTRS AG OTRS Community Edition](https://junglewise.ai/threats/technologies/otrs-community-edition). Vendors: [OTRS AG](https://junglewise.ai/threats/vendors/otrs-ag).

## Quick answers

**Is CVE-2026-48188 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-48188 being exploited in the wild.

**How severe is CVE-2026-48188?** Critical severity, with a CVSS score of 9.1, published 1 June 2026.

**Which products and versions are affected?** OTRS AG OTRS Community Edition 6.0.x.

**Is there a fix for CVE-2026-48188?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-48188 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-48188?** Check whether you run OTRS AG OTRS Community Edition at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An improper input validation vulnerability exists in the database layer module of OTRS and OTRS Community Edition. The flaw allows for unauthenticated SQL injection, which can be leveraged to achieve a full authentication bypass. This vulnerability is conditional; it only affects systems where the underlying MySQL or MariaDB database is configured with the 'NO_BACKSLASH_ESCAPES' SQL mode. Attackers can exploit this over the network without any prior credentials or user interaction. Users are advised to upgrade to OTRS 2026.4.X or later to mitigate the risk.

## Affected products

- OTRS AG OTRS 7.0.X, 8.0.X, 2023.X, 2024.X, 2025.X, 2026.X before 2026.4.X
- OTRS AG OTRS Community Edition 6.0.x

## Timeline

- 2026-06-01: disclosed
- 2026-06-01: advisory

## References

- [https://otrs.com/release-notes/otrs-security-advisory-2026-02/](https://otrs.com/release-notes/otrs-security-advisory-2026-02/)

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