Vulnerability Details CVE-2026-48189
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
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 9.2%
CVSS Severity
CVSS v3 Score 5.7
Products affected by CVE-2026-48189
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cpe:2.3:a:otrs:otrs:2023.0.0
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cpe:2.3:a:otrs:otrs:2023.1.1
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cpe:2.3:a:otrs:otrs:2024.1.1
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cpe:2.3:a:otrs:otrs:2024.5.2
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cpe:2.3:a:otrs:otrs:2024.6.1
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cpe:2.3:a:otrs:otrs:2024.7.1
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cpe:2.3:a:otrs:otrs:2024.8.1
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cpe:2.3:a:otrs:otrs:2025.1.1
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cpe:2.3:a:otrs:otrs:2025.1.2
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cpe:2.3:a:otrs:otrs:2025.2.1
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cpe:2.3:a:otrs:otrs:2025.2.2
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cpe:2.3:a:otrs:otrs:2025.3.1
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cpe:2.3:a:otrs:otrs:2025.3.2
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cpe:2.3:a:otrs:otrs:2025.4.1
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cpe:2.3:a:otrs:otrs:2025.5.1
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cpe:2.3:a:otrs:otrs:2025.5.2
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cpe:2.3:a:otrs:otrs:2025.5.3
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cpe:2.3:a:otrs:otrs:2025.6.1
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cpe:2.3:a:otrs:otrs:2025.7.1
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cpe:2.3:a:otrs:otrs:2025.7.2
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cpe:2.3:a:otrs:otrs:2025.7.3
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cpe:2.3:a:otrs:otrs:2025.7.4
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cpe:2.3:a:otrs:otrs:2025.7.5
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cpe:2.3:a:otrs:otrs:2025.7.6
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cpe:2.3:a:otrs:otrs:2025.8.1
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cpe:2.3:a:otrs:otrs:2025.9.1
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cpe:2.3:a:otrs:otrs:2025.9.2
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cpe:2.3:a:otrs:otrs:2026.1.1
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cpe:2.3:a:otrs:otrs:2026.3.1
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cpe:2.3:a:otrs:otrs:2026.4.0
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cpe:2.3:a:otrs:otrs:7.0.0
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cpe:2.3:a:otrs:otrs:7.0.11
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cpe:2.3:a:otrs:otrs:7.0.12
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cpe:2.3:a:otrs:otrs:7.0.13
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cpe:2.3:a:otrs:otrs:7.0.14
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cpe:2.3:a:otrs:otrs:7.0.15
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cpe:2.3:a:otrs:otrs:7.0.16
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cpe:2.3:a:otrs:otrs:7.0.17
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cpe:2.3:a:otrs:otrs:7.0.18
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cpe:2.3:a:otrs:otrs:7.0.19
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cpe:2.3:a:otrs:otrs:7.0.21
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cpe:2.3:a:otrs:otrs:7.0.22
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cpe:2.3:a:otrs:otrs:7.0.23
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cpe:2.3:a:otrs:otrs:7.0.24
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cpe:2.3:a:otrs:otrs:7.0.26
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cpe:2.3:a:otrs:otrs:7.0.27
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cpe:2.3:a:otrs:otrs:7.0.28
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cpe:2.3:a:otrs:otrs:7.0.29
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cpe:2.3:a:otrs:otrs:7.0.30
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cpe:2.3:a:otrs:otrs:7.0.31
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cpe:2.3:a:otrs:otrs:7.0.32
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cpe:2.3:a:otrs:otrs:7.0.35
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cpe:2.3:a:otrs:otrs:7.0.39
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cpe:2.3:a:otrs:otrs:7.0.4
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cpe:2.3:a:otrs:otrs:7.0.40
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cpe:2.3:a:otrs:otrs:7.0.48
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cpe:2.3:a:otrs:otrs:7.0.49
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cpe:2.3:a:otrs:otrs:7.0.5
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cpe:2.3:a:otrs:otrs:7.0.6
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cpe:2.3:a:otrs:otrs:7.0.7
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cpe:2.3:a:otrs:otrs:7.0.8
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cpe:2.3:a:otrs:otrs:8.0.0
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cpe:2.3:a:otrs:otrs:8.0.1
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cpe:2.3:a:otrs:otrs:8.0.10
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cpe:2.3:a:otrs:otrs:8.0.11
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cpe:2.3:a:otrs:otrs:8.0.12
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cpe:2.3:a:otrs:otrs:8.0.13
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cpe:2.3:a:otrs:otrs:8.0.14
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cpe:2.3:a:otrs:otrs:8.0.15
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cpe:2.3:a:otrs:otrs:8.0.16
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cpe:2.3:a:otrs:otrs:8.0.17
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cpe:2.3:a:otrs:otrs:8.0.18
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cpe:2.3:a:otrs:otrs:8.0.19
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cpe:2.3:a:otrs:otrs:8.0.2
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cpe:2.3:a:otrs:otrs:8.0.23
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cpe:2.3:a:otrs:otrs:8.0.26
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cpe:2.3:a:otrs:otrs:8.0.27
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cpe:2.3:a:otrs:otrs:8.0.28
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cpe:2.3:a:otrs:otrs:8.0.29
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cpe:2.3:a:otrs:otrs:8.0.3
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cpe:2.3:a:otrs:otrs:8.0.30
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cpe:2.3:a:otrs:otrs:8.0.31
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cpe:2.3:a:otrs:otrs:8.0.32
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cpe:2.3:a:otrs:otrs:8.0.37
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cpe:2.3:a:otrs:otrs:8.0.4
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cpe:2.3:a:otrs:otrs:8.0.5
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cpe:2.3:a:otrs:otrs:8.0.6
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cpe:2.3:a:otrs:otrs:8.0.7
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cpe:2.3:a:otrs:otrs:8.0.9