CVE-2026-48189: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor in OTRS AG OTRS
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
AI Analysis
Technical Summary
This vulnerability in OTRS AG's OTRS product arises from improper input validation in the Customer Backend module. When the CustomerGroupSupport feature is enabled, it allows users with limited privileges to access customer data that should be restricted to other groups. Affected versions include 7.0.x, 8.0.x, 2023.x, 2024.x, 2025.x, and 2026.x prior to 2026.4.x. The CVSS 3.1 vector indicates network attack vector, low attack complexity, requiring privileges and user interaction, with high confidentiality impact but no integrity or availability impact. No known exploits in the wild have been reported, and no vendor advisory or patch information is currently available.
Potential Impact
The vulnerability allows unauthorized actors with some privileges and user interaction to access sensitive customer information that should be restricted, leading to confidentiality breaches. There is no impact on data integrity or availability. This could result in exposure of sensitive customer data across affected OTRS installations using the CustomerGroupSupport feature.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider disabling the CustomerGroupSupport feature if feasible to prevent exploitation. Monitor vendor communications for updates on patches or official mitigations.
CVE-2026-48189: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor in OTRS AG OTRS
Description
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
CVSS v3.1
Score 5.7medium
Affected software
pkg:github/otrs/otrsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in OTRS AG's OTRS product arises from improper input validation in the Customer Backend module. When the CustomerGroupSupport feature is enabled, it allows users with limited privileges to access customer data that should be restricted to other groups. Affected versions include 7.0.x, 8.0.x, 2023.x, 2024.x, 2025.x, and 2026.x prior to 2026.4.x. The CVSS 3.1 vector indicates network attack vector, low attack complexity, requiring privileges and user interaction, with high confidentiality impact but no integrity or availability impact. No known exploits in the wild have been reported, and no vendor advisory or patch information is currently available.
Potential Impact
The vulnerability allows unauthorized actors with some privileges and user interaction to access sensitive customer information that should be restricted, leading to confidentiality breaches. There is no impact on data integrity or availability. This could result in exposure of sensitive customer data across affected OTRS installations using the CustomerGroupSupport feature.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider disabling the CustomerGroupSupport feature if feasible to prevent exploitation. Monitor vendor communications for updates on patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- OTRS
- Date Reserved
- 2026-05-21T07:53:13.254Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1d9f63e29bf47b5008bae8
Added to database: 06/01/2026, 15:04:03 UTC
Last enriched: 06/01/2026, 15:20:06 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 77
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