{"id":"CVE-2026-115721","title":"Apache Vysper: Unbounded allocation","summary":"**UNSUPPORTED WHEN ASSIGNED**  Unbounded allocation in XML parsing in Apache Vysper; all versions, may lead to an out of memory condition.\n\n\n\n\nThis issue affects all versions of Apache Vysper. Apache Vysper is an XMPP (Jabber) server lib…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","vendor":"Apache Software Foundation","product":"org.apache.vysper:vysper","affected":["org.apache.vysper:vysper <= *"],"published":"2026-10-26","updated":"2026-10-26","sourceUpdated":"2026-10-26T15:01:29.549Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115721","references":[{"url":"https://mina.apache.org/vysper-project/"},{"url":"https://lists.apache.org/thread.html/d0bx15hjcs69gktk9tt25vgvk121c9vm"}],"tags":["cve.org"],"ingestedAt":"2026-10-26T15:29:30.501Z","slug":"CVE-2026-115721","body":"## Overview\n\n**UNSUPPORTED WHEN ASSIGNED**  Unbounded allocation in XML parsing in Apache Vysper; all versions, may lead to an out of memory condition.\n\n\n\n\nThis issue affects all versions of Apache Vysper. Apache Vysper is an XMPP (Jabber) server library.\n\n\n\n\nAs this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative.\n\n## Affected\n\n- `org.apache.vysper:vysper <= *`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}