Description
slixmpp version before commit 7cd73b594e8122dddf847953fcfc85ab4d316416 contains an incorrect Access Control vulnerability in XEP-0223 plugin (Persistent Storage of Private Data via PubSub) options profile, used for the configuration of default access model that can result in all of the contacts of the victim can see private data having been published to a PEP node. This attack appears to be exploitable if the user of this library publishes any private data on PEP, the node isn't configured to be private. This vulnerability appears to have been fixed in commit 7cd73b594e8122dddf847953fcfc85ab4d316416 which is included in slixmpp 1.4.2.
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 | slixmpp | 1.4.2-1 | — |
| Debian 13 | slixmpp | 1.4.2-1 | — |
| Debian 12 | slixmpp | 1.4.2-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | slixmpp | 1.4.2-1 | — |
| Ubuntu 18.04 LTS | slixmpp | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 | python-slixmpp | 1.3.0-bp150.3.3.1 | openSUSE-SU-2019:0169-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-slixmpp | 1.8.5-1.2 | openSUSE-SU-2026:11272-1, openSUSE-SU-2024:14165-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | slixmpp | < 1.4.2 | 1.4.2 | GHSA-4g62-mfwx-4q48 |
Advisories 3
- openSUSE-SU-2026:11272-1 python313-slixmpp-1.16.0-2.1 on GA media SUSE / openSUSE Security Updates · Jul 15, 2026
- openSUSE-SU-2019:0169-1 Security update for python-slixmpp SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14165-1 python310-slixmpp-1.8.5-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026