{"action":"Upgrade fluidsynth to 2.5.6+dfsg-1 or later.","affected":[{"fixed":"2.5.6+dfsg-1","introduced":"0"}],"component":"fluidsynth","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.5.6+dfsg-1"],"id":"tcs_01M5NT44RW08REJH7RRZPDRMVM","modified_at":"2026-09-25T08:47:23.657643371Z","published_at":"2026-09-18T20:17:18.107Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-58264","https://security-tracker.debian.org/tracker/CVE-2026-58264"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-58264#Debian:14/fluidsynth","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-58264"}],"summary":"FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 1.1.2 until 2.5.6, the FluidSynth command handler accepts a pitch_bend_range command whose channel argument is not bo"}