An improper default configuration in OTRS 2026.3.1 causes ticket article forwarding actions to enforce the “Is visible for customer” flag by default and prevent users from disabling it via the UI. This leads to unintended exposure of internal ticket information to the External Frontend

This issue affects OTRS 2026.3.1

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Advisories

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Fixes

Solution

Update to latest version of OTRS (2026.4.1. or later).


Workaround

Go to Forms###AgentFrontend::TicketArticle::Action::Forward in System Configuration. You will find that by Is visible for customer is a line Disabled: 1. Change it to Disabled to 0 or remove it.  Caution: Still the user has to check the checkbox on forwarding and uncheck it if needed

History

Sun, 31 May 2026 21:30:00 +0000

Type Values Removed Values Added
Description An improper default configuration in OTRS 2026.3.1 causes ticket article forwarding actions to enforce the “Is visible for customer” flag by default and prevent users from disabling it via the UI. This leads to unintended exposure of internal ticket information to the External Frontend This issue affects OTRS 2026.3.1
Title Possible information disclosure via External Interface
Weaknesses CWE-200
CWE-269
References
Metrics cvssV3_1

{'score': 5.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: OTRS

Published:

Updated: 2026-05-31T21:11:25.337Z

Reserved: 2026-05-21T12:12:49.646Z

Link: CVE-2026-48210

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-31T22:16:55.133

Modified: 2026-05-31T22:16:55.133

Link: CVE-2026-48210

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-31T22:30:14Z

Weaknesses