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
Problem types
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-269 Improper Privilege Management
Product status
2026.3.1
References
otrs.com/release-notes/otrs-security-advisory-2026-09/