{"action":"Upgrade mosquitto to 1.6.7-r0 or later.","affected":[{"fixed":"1.6.7-r0","introduced":"1.5"}],"component":"mosquitto","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.19","exploited":false,"fixed_versions":["1.6.7-r0"],"id":"tcs_01M5NB6MWBTFGRAYHMYG00MVRK","modified_at":"2026-09-21T06:17:52.461229191Z","published_at":"2019-09-19T14:15:10.573Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2019-11779","https://security.alpinelinux.org/vuln/CVE-2019-11779"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2019-11779#Alpine:v3.19/mosquitto","url":"https://osv.dev/vulnerability/ALPINE-CVE-2019-11779"}],"summary":"In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierar"}