[ CVE-2026-115721 · Published 26 Oct 2026 ]
Vulnerability in Apache Software Foundation Apache Vysper
CVSS 7.5
EPSS <1%No fix listed yet
[ Description ]Official description
**UNSUPPORTED WHEN ASSIGNED** Unbounded allocation in XML parsing in Apache Vysper; all versions, may lead to an out of memory condition. This issue affects all versions of Apache Vysper. Apache Vysper is an XMPP (Jabber) server library. As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.