Description
transmission through 4.1.1 was found to have a clickjacking weakness in the browser-facing WebUI and RPC response paths.
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 | transmission | 4.1.2+dfsg-1 | — |
| Debian 13 | transmission | 4.1.0~beta2+dfsg-3+deb13u2 | — |
| Debian 12 | transmission | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | transmission | 4.1.1+dfsg-1ubuntu1.1 | USN-8404-1 |
| Ubuntu 25.10 | transmission | 4.1.0~beta2+dfsg-3ubuntu1.1 | USN-8404-1 |
| Ubuntu 24.04 LTS | transmission | 4.0.5-1ubuntu0.1 | USN-8404-1 |
| Ubuntu 22.04 LTS | transmission | 3.00-2ubuntu2.2 | USN-8404-1 |
| Ubuntu 20.04 LTS | transmission | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | transmission | No fix yet | — |
| Ubuntu 16.04 LTS | transmission | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | transmission | 4.0.6-bp160.2.1 | openSUSE-SU-2026:21189-1 |
Advisories 2
- openSUSE-SU-2026:21189-1 Security update for transmission SUSE / openSUSE Security Updates · Jul 3, 2026
- USN-8404-1 transmission vulnerability Ubuntu Security Notices (USN) · Jun 8, 2026