Description
In Redmine before 3.2.7 and 3.3.x before 3.3.4, the reminders function in app/models/mailer.rb does not check whether an issue is visible, which allows remote authenticated users to obtain sensitive information by reading e-mail reminder messages.
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 14 | redmine | 3.4.2-1 | — |
| Debian 13 | redmine | 3.4.2-1 | — |
| Debian 12 | redmine | 3.4.2-1 | — |
| Debian 9 | redmine | 3.3.1-4+deb9u1 | DSA-4191-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | redmine | No fix yet | — |
Advisories 1
- DSA-4191-1 redmine - security update Debian Security (DSA / DLA) · Mar 9, 2026