Live › vulnerability › CVE-2026-115721
Go to dashboardApache Vysper, an XMPP (Jabber) server library, allocates memory without bound while parsing XML. A crafted XML stream can drive the process out of memory and crash it.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-26 16:31 UTC. All times on this page are UTC.
Teams that embed Apache Vysper to run an XMPP server exposed to untrusted clients are affected, since the flaw is triggered by parsing incoming XML. Systems that do not use Vysper, or that only talk to XMPP servers built on other libraries, can skip it.
No product ranges from the sources yet.
vysper.Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
This page as .md · .json · in your agent: get_signal("CVE-2026-115721")
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