Description
muc.lib.lua in Prosody 0.11.0 through 0.11.9 allows remote attackers to obtain sensitive information (list of admins, members, owners, and banned entities of a Multi-User chat room) in some common configurations.
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 | prosody | 0.11.9-2 | — |
| Debian 13 | prosody | 0.11.9-2 | — |
| Debian 12 | prosody | 0.11.9-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | prosody | No fix yet | — |
| Ubuntu 16.04 LTS | prosody | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | prosody | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP3 | prosody | 0.11.10-bp153.2.6.2 | openSUSE-SU-2021:1173-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | prosody | 0.11.10-1.2 | openSUSE-SU-2024:11197-1 |
| openSUSE Leap 15.3 | prosody | 0.11.10-bp153.2.6.2 | openSUSE-SU-2021:1173-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | prosody | 0.11.10-r0 | — |
| Alpine v3.23 | prosody | 0.11.10-r0 | — |
| Alpine v3.22 | prosody | 0.11.10-r0 | — |
| Alpine v3.21 | prosody | 0.11.10-r0 | — |
| Alpine v3.20 | prosody | 0.11.10-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | prosody | 0.11.10-r0 | — |
| Alpine v3.18 | prosody | 0.11.10-r0 | — |
| Alpine v3.17 | prosody | 0.11.10-r0 | — |
| Alpine v3.16 | prosody | 0.11.10-r0 | — |
| Alpine v3.15 | prosody | 0.11.10-r0 | — |
| Alpine v3.14 | prosody | 0.11.10-r0 | — |
Advisories 2
- openSUSE-SU-2021:1173-1 Security update for prosody SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11197-1 prosody-0.11.10-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026