CVE-2026-115721: Apache Vysper: Unbounded allocation
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A CVE describes unbounded XML parsing allocation in the retired Apache Vysper XMPP server library, potentially causing out-of-memory conditions.
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Posted by Thomas Wolf on Oct 23 Severity: moderate CVSS 3.1: 7.5 (high) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected versions: - Apache Vysper: all versions 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...