{"id":"CVE-2021-26951","aliases":["GHSA-ppqp-78xx-3r38","RUSTSEC-2021-0015"],"url":"https://o3.security/vulnerability/CVE-2021-26951","summary":"Out of bounds write in calamine","details":"An issue was discovered in the calamine crate before 0.17.0 for Rust. It allows attackers to overwrite heap-memory locations because Vec::set_len is used without proper memory claiming, and this uninitialized memory is used for a user-provided Read operation, as demonstrated by Sectors::get.","published":"2021-02-09T23:15:13.663Z","modified":"2026-07-08T21:27:30.470795Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.01728,"percentile":0.75489,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"crates.io","name":"calamine","fixedVersion":"0.17.0"}],"fix":null,"references":[{"type":"EVIDENCE","url":"https://rustsec.org/advisories/RUSTSEC-2021-0015.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T21:27:30.470795Z"}}