{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"msgpack-java","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":[],"id":"tcs_01M5NQYWEEC433SPRFKW1VHAZ1","modified_at":"2026-10-01T03:03:08.754845996Z","published_at":"2026-01-02T21:16:03.067Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-21452","https://security-tracker.debian.org/tracker/CVE-2026-21452"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-21452#Debian:14/msgpack-java","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-21452"}],"summary":"MessagePack for Java is a serializer implementation for Java. A denial-of-service vulnerability exists in versions prior to 0.9.11 when deserializing .msgpack files containing EXT32 objects with attac"}