{"schema_version":"1.3.1","id":"GO-2026-4513","modified":"2026-03-26T19:14:13Z","published":"2026-03-16T20:27:23Z","aliases":["CVE-2026-32284"],"summary":"Denial of service in github.com/shamaton/msgpack","details":"The msgpack decoder fails to properly validate the input buffer length when processing truncated fixext data (format codes 0xd4-0xd8). This can lead to an out-of-bounds read and a runtime panic, allowing a denial of service attack.","affected":[{"package":{"name":"github.com/shamaton/msgpack","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{"imports":[{"path":"github.com/shamaton/msgpack","symbols":["DecodeStructAsArray","DecodeStructAsMap","Unmarshal","UnmarshalAsArray","UnmarshalAsMap"]}]}},{"package":{"name":"github.com/shamaton/msgpack/v2","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{"imports":[{"path":"github.com/shamaton/msgpack/v2","symbols":["Unmarshal","UnmarshalAsArray","UnmarshalAsMap"]}]}},{"package":{"name":"github.com/shamaton/msgpack/v3","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{"imports":[{"path":"github.com/shamaton/msgpack/v3","symbols":["Unmarshal","UnmarshalAsArray","UnmarshalAsMap"]}]}}],"references":[{"type":"REPORT","url":"https://github.com/shamaton/msgpack/issues/59"},{"type":"REPORT","url":"https://github.com/golang/vulndb/issues/4513"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4513","review_status":"REVIEWED"}}