{"action":"Upgrade puma to 5.6.5-3+deb12u2 or later.","affected":[{"fixed":"5.6.5-3+deb12u2","introduced":"0"}],"component":"puma","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["5.6.5-3+deb12u2"],"id":"tcs_01M5NSK0STS6C1FN1SZHGQKXCC","modified_at":"2026-10-07T12:00:07.658866648Z","published_at":"2026-07-14T20:17:03.620Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-47736","https://security-tracker.debian.org/tracker/CVE-2026-47736"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-47736","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-47736"}],"summary":"Puma is a Ruby/Rack web server built for parallelism. From 5.5.0 until 7.2.1 and 8.0.2, when PROXY protocol v1 support is enabled, Puma reads incoming bytes into an internal buffer while waiting for C"}