{"id":"DEBIAN-CVE-2026-111821","details":"Improper input validation vulnerability in Apache ActiveMQ, Apache ActiveMQ KahaDB.    A user can create a durable subscription with a clientId and subscription name that have a combined length \u003e 65,535 (while separately being shorter) on a broker using KahaDB which can cause the broker to shutdown and be unrecoverable.     This issue affects Apache ActiveMQ: from 6.0.0 before 6.3.3, before 5.19.12; Apache ActiveMQ KahaDB: from 6.0.0 before 6.3.3, before 5.19.12.    Users are recommended to upgrade to version 6.4.0, 6.3.3 or 5.19.12, which fixes the issue.","modified":"2026-11-06T14:01:41.524048178Z","published":"2026-11-04T10:17:25.363Z","upstream":["CVE-2026-111821"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-111821"}],"affected":[{"package":{"name":"activemq","ecosystem":"Debian:12","purl":"pkg:deb/debian/activemq?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.17.2+dfsg-2","5.17.2+dfsg-2+deb12u1","5.17.6+dfsg-1","5.17.6+dfsg-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111821.json"}},{"package":{"name":"activemq","ecosystem":"Debian:13","purl":"pkg:deb/debian/activemq?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.17.6+dfsg-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111821.json"}}],"schema_version":"1.9.2"}