Description
Gajim through 0.16.7 unconditionally implements the "XEP-0146: Remote Controlling Clients" extension. This can be abused by malicious XMPP servers to, for example, extract plaintext from OTR encrypted sessions.
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 | gajim | 0.16.6-1.1 | — |
| Debian 13 | gajim | 0.16.6-1.1 | — |
| Debian 12 | gajim | 0.16.6-1.1 | — |
| Debian 8 | gajim | 0.16-1+deb8u2 | DSA-3943-1 |
| Debian 7 | gajim | 0.15.1-4.1+deb7u3 | DLA-967-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | gajim | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gajim | 1.3.2-1.2 | openSUSE-SU-2024:10775-1 |
Advisories 3
- DLA-967-1 gajim - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3943-1 gajim - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10775-1 gajim-1.3.2-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026