CVE-2026-48188
Critical
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
SeverityCritical
CVSS9.1
Exploit probability—
Product
Otrs
PublishedJun 1, 2026
First seenJun 1, 2026
Weakness typeCWE-20Improper input validation
How to fix
Update
- otrs otrs2026.4.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| otrs otrs | v ≤ 6.0.32, 7.0.0 ≤ v ≤ 8.0.37, 2023.0.0 ≤ v < 2026.4.1 | 2026.4.1 |
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