{"id":"CVE-2021-29939","details":"An issue was discovered in the stackvector crate through 2021-02-19 for Rust. There is an out-of-bounds write in StackVec::extend if size_hint provides certain anomalous data.","aliases":["GHSA-9frf-r7c7-j2vg","RUSTSEC-2021-0048"],"modified":"2026-03-14T10:57:19.198142Z","published":"2021-04-01T05:15:14.843Z","references":[{"type":"EVIDENCE","url":"https://rustsec.org/advisories/RUSTSEC-2021-0048.html"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"1.0.9"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29939.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"}]}