Description
In Open Ticket Request System (OTRS) through 3.3.20, 4 through 4.0.26, 5 through 5.0.24, and 6 through 6.0.1, an attacker who is logged in as a customer can use the ticket search form to disclose internal article information of their customer tickets.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 11 | otrs2 | 6.0.2-1 | — |
| Debian 9 | otrs2 | 5.0.16-1+deb9u4 | DSA-4066-1 |
| Debian 8 | otrs2 | 3.3.18-1+deb8u3 | DSA-4066-1 |
| Debian 7 | otrs2 | 3.3.18-1~deb7u2 | DLA-1212-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | otrs2 | No fix yet | — |
Advisories 2
- DSA-4066-1 otrs2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1212-1 otrs2 - security update Debian Security (DSA / DLA) · Mar 9, 2026