{"id":"CVE-2021-28877","details":"In the standard library in Rust before 1.51.0, the Zip implementation calls __iterator_get_unchecked() for the same index more than once when nested. This bug can lead to a memory safety violation due to an unmet safety requirement for the TrustedRandomAccess trait.","modified":"2026-04-10T04:31:50.995045Z","published":"2021-04-11T20:15:12.737Z","references":[{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202210-09"},{"type":"FIX","url":"https://github.com/rust-lang/rust/pull/80670"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/rust-lang/rust","events":[{"introduced":"0"},{"fixed":"2fd73fabe469357a12c2c974c140f67e7cdd76d0"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.51.0"}]}}],"versions":["0.1","0.2","0.4","0.5","0.6","0.7","0.8","0.9","1.0.0-alpha","1.0.0-alpha.2","1.0.0-beta","release-0.1","release-0.2","release-0.4","release-0.5","release-0.6","release-0.7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28877.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:N/I:N/A:H"}]}