{"action":"Upgrade mosquitto to 2.0.8-r0 or later.","affected":[{"fixed":"2.0.8-r0","introduced":"0"}],"component":"mosquitto","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.22","exploited":false,"fixed_versions":["2.0.8-r0"],"id":"tcs_01M5ND902FN03APNQ0FMPPTYRH","modified_at":"2026-10-23T17:17:56.192880181Z","published_at":"2021-07-27T16:15:07.893Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-34432","https://security.alpinelinux.org/vuln/CVE-2021-34432"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-34432#Alpine:v3.22/mosquitto","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-34432"}],"summary":"In Eclipse Mosquitto versions 2.0.7 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0."}