CVE-2026-48188: Otrs

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

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

Affected products

• Otrs Otrs: up to and including 6.0.32; from 7.0.0, up to and including 8.0.37; from 2023.0.0, before 2026.4.1 (fixed in 2026.4.1)

Published 2026-06-01. Last modified 2026-07-22.