CVE-2026-48189

EUVD-2026-33551
An improper Input Validation vulnerability in OTRS Customer Backend module allows to access customer information which are restricted to other groups. Please note that the feature has to be anabled and CustomerGroupSupport has to be used to be affected.

This issue affects OTRS: 

  *  7.0.X
  *  8.0.X
  *  2023.X
  *  2024.X
  *  2025.X
  *  2026.X before 2026.4.X
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
OTRSCNA
5.7 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 9%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
otrsotrs
7.0.0 ≤
𝑥
< 7.1.0
CNA
otrsotrs
8.0.0 ≤
𝑥
< 8.1.0
CNA
otrsotrs
2023.0 ≤
𝑥
< 2024.0
CNA
otrsotrs
2024.0 ≤
𝑥
< 2025.0
CNA
otrsotrs
2025.0 ≤
𝑥
< 2026.0
CNA
otrsotrs
2026.0 ≤
CNA