{"id":"CVE-2021-31919","aliases":["GHSA-w5cr-frph-hw7f","RUSTSEC-2021-0054"],"url":"https://o3.security/vulnerability/CVE-2021-31919","summary":"Use of uninitialized buffer in rkyv","details":"An issue was discovered in the rkyv crate before 0.6.0 for Rust. When an archive is created via serialization, the archive content may contain uninitialized values of certain parts of a struct.","published":"2021-04-30T03:15:07.517Z","modified":"2026-07-08T05:57:24.945368787Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"rkyv","fixedVersion":"0.6.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://rustsec.org/advisories/RUSTSEC-2021-0054.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:57:24.945368787Z"}}