Description
Mumble before 1.3.4 allows remote code execution if a victim navigates to a crafted URL on a server list and clicks on the Open Webpage text.
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 | mumble | 1.3.4-1 | — |
| Debian 13 | mumble | 1.3.4-1 | — |
| Debian 12 | mumble | 1.3.4-1 | — |
| Debian 9 | mumble | 1.2.18-1+deb9u2 | DLA-2562-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | mumble | 1.3.4-1 | — |
| Ubuntu 20.04 LTS | mumble | 1.3.0+dfsg-1ubuntu0.1 | USN-5195-1 |
| Ubuntu 18.04 LTS | mumble | 1.2.19-1ubuntu1.1 | USN-5195-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | mumble | 1.2.12-1ubuntu1+esm1 | USN-5195-2 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mumble | 1.3.4-2.7 | openSUSE-SU-2024:11065-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | mumble | 1.3.4-r0 | — |
| Alpine v3.23 | mumble | 1.3.4-r0 | — |
| Alpine v3.22 | mumble | 1.3.4-r0 | — |
| Alpine v3.21 | mumble | 1.3.4-r0 | — |
| Alpine v3.20 | mumble | 1.3.4-r0 | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | mumble | 1.3.4-r0 | — |
| Alpine v3.18 | mumble | 1.3.4-r0 | — |
| Alpine v3.17 | mumble | 1.3.4-r0 | — |
| Alpine v3.16 | mumble | 1.3.4-r0 | — |
| Alpine v3.15 | mumble | 1.3.4-r0 | — |
| Alpine v3.14 | mumble | 1.3.4-r0 | — |
| Alpine v3.13 | mumble | 1.3.3-r6 | — |
Advisories 4
- USN-5195-2 mumble vulnerability Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-2562-1 mumble - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-5195-1 mumble vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
- openSUSE-SU-2024:11065-1 mumble-1.3.4-2.7 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/mumble-voip/mumble/compare/1.3.3...1.3.4
- https://github.com/mumble-voip/mumble/pull/4733
- https://github.com/mumble-voip/mumble/commit/e59ee87abe249f345908c7d568f6879d16bfd648
- [debian-lts-announce] 20210218 [SECURITY] [DLA 2562-1] mumble security update mailing-list
- GLSA-202105-13 vendor-advisory