{"action":"Upgrade mosquitto to 1.5.3-r0 or later.","affected":[{"fixed":"1.5.3-r0","introduced":"1.5.0"}],"component":"mosquitto","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.17","exploited":false,"fixed_versions":["1.5.3-r0"],"id":"tcs_01M5NA6KGN08KWZXPSCGPR7002","modified_at":"2026-10-23T17:17:55.209073291Z","published_at":"2018-11-15T15:29:01.350Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2018-12543","https://security.alpinelinux.org/vuln/CVE-2018-12543"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2018-12543#Alpine:v3.17/mosquitto","url":"https://osv.dev/vulnerability/ALPINE-CVE-2018-12543"}],"summary":"In Eclipse Mosquitto versions 1.5 to 1.5.2 inclusive, if a message is published to Mosquitto that has a topic starting with $, but that is not $SYS, e.g. $test/test, then an assert is triggered that s"}