{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"ruby3.1","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":[],"id":"tcs_01M5NRFSCEV6NX055C4H5S9V1B","modified_at":"2026-10-27T09:47:36.219374804Z","published_at":"2026-04-16T18:16:44.770Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-27820","https://security-tracker.debian.org/tracker/CVE-2026-27820"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-27820","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-27820"}],"summary":"zlib is a Ruby interface for the zlib compression/decompression library. Versions 3.0.0 and below, 3.1.0, 3.1.1, 3.2.0 and 3.2.1 contain a buffer overflow vulnerability in the Zlib::GzipReader. The zs"}