Bypass DedicatedAgentToCustomerGroups Setting

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Summary

CVECVE-2026-48189
StatePUBLISHED
AssignerOTRS
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-01 04:16:22 UTC
Updated2026-06-01 04:16:22 UTC
DescriptionAn 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

Risk And Classification

Primary CVSS: v3.1 5.7 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Problem Types: CWE-200 | CWE-200 CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
3.1CNACVSS5.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OTRS AG OTRS affected 7.0.x Not specified
CNA OTRS AG OTRS affected 8.0.x Not specified
CNA OTRS AG OTRS affected 2023.x Not specified
CNA OTRS AG OTRS affected 2024.x Not specified
CNA OTRS AG OTRS affected 2025.x Not specified
CNA OTRS AG OTRS affected 2026.x 2026.3.x patch Not specified

References

ReferenceSourceLinkTags
otrs.com/release-notes/otrs-security-advisory-2026-03 [email protected] otrs.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: Update to OTRS 2026.4.1. or later. Please note that there will be no OTRS 7 patches

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