{"id":"CVE-2021-34434","details":"In Eclipse Mosquitto versions 2.0 to 2.0.11, when using the dynamic security plugin, if the ability for a client to make subscriptions on a topic is revoked when a durable client is offline, then existing subscriptions for that client are not revoked.","modified":"2026-03-14T11:00:07.276071Z","published":"2021-08-30T20:15:07.363Z","related":["MGASA-2021-0445","openSUSE-SU-2024:11575-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4WWGVF5BUFPYPCFUPPP4KRIYI5OTJN2/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RLUUM52Y6AEICPXPSRRXC6OBY4H5XKW7/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2023/dsa-5511"},{"type":"REPORT","url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=575324"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/eclipse/mosquitto","events":[{"introduced":"c00671af5c25593bebf065ed8820f7f00ee85efe"},{"last_affected":"3b89bb2e3532f99f0394b11a09ccc481cebcb0b2"}],"database_specific":{"versions":[{"introduced":"2.0.0"},{"last_affected":"2.0.11"}]}}],"versions":["v2.0.0","v2.0.1","v2.0.10","v2.0.11","v2.0.2","v2.0.3","v2.0.4","v2.0.5","v2.0.6","v2.0.7","v2.0.8","v2.0.9"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"34"}]},{"events":[{"introduced":"0"},{"last_affected":"35"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34434.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}