CVE-2026-48188
CriticalCVSS 9.1Exploitation Probability (EPSS)
Low risk29th percentile - higher than 29% of all known CVEs
Summary
An improper input validation vulnerability in the database layer module of OTRS and ((OTRS)) Community Edition allows an unauthenticated SQL injection, which can lead to authentication bypass. This issue only affects systems where the MySQL/MariaDB server is configured with the NO_BACKSLASH_ESCAPES SQL mode.
Risk Assessment
An unauthenticated attacker can gain access to the OTRS system, potentially taking over user accounts and accessing sensitive data.
Recommendation
Update OTRS to version 2026.4.X or later and ensure the MySQL/MariaDB server does not use the NO_BACKSLASH_ESCAPES SQL mode.
Original NVD description (English source)
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