{"action":"Upgrade mosquitto to 2.0.15-1 or later.","affected":[{"fixed":"2.0.15-1","introduced":"0"}],"component":"mosquitto","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.0.15-1"],"id":"tcs_01M5NFRFCZJPCW2XCV35C5CQMV","modified_at":"2026-10-23T18:04:50.631198374Z","published_at":"2021-08-30T20:15:07.363Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-34434","https://security-tracker.debian.org/tracker/CVE-2021-34434"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-34434#Debian:14/mosquitto","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-34434"}],"summary":"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 exis"}