{"id":"GHSA-m4ch-rfv5-x5g3","revision":"6360ef8be1684317a24ba3cb18e53e80","records":[{"revision":"6360ef8be1684317a24ba3cb18e53e80","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"GHSA-m4ch-rfv5-x5g3","aliases":["CVE-2023-22742","GHSA-8643-3wh5-rmjq","RUSTSEC-2023-0003"],"title":"git2-rs fails to verify SSH keys by default","description":"The git2 and libgit2-sys crates are Rust wrappers around the [libgit2](https://libgit2.org/) C library. It was discovered that libgit2 1.5.0 and below did not verify SSH host keys when establishing an SSH connection, exposing users of the library to Man-In-the-Middle attacks.\n\nThe libgit2 team assigned [CVE-2023-22742](https://github.com/libgit2/libgit2/security/advisories/GHSA-8643-3wh5-rmjq) to this vulnerability. The following versions of the libgit2-sys Rust crate have been released:\n\n* libgit2-sys 0.14.2, updating the underlying libgit2 C library to version 1.5.1.\n* libgit2-sys 0.13.5, updating the underlying libgit2 C library to version 1.4.5.\n\nA new git2 crate version has also been released, 0.16.1. This version only bumps its libgit2-sys dependency to ensure no vulnerable libgit2-sys versions are used, but contains no code changes: if you update the libgit2-sys version there is no need to also update the git2 crate version.\n\n[You can learn more about this vulnerability in libgit2's advisory](https://github.com/libgit2/libgit2/security/advisories/GHSA-8643-3wh5-rmjq)","state":0,"publishedAt":"2023-01-20T23:36:41+00:00","modifiedAt":"2026-10-14T17:07:22+00:00","affected":[{"ecosystem":"crates.io","name":"libgit2-sys","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.14.0"},{"kind":"fixed","version":"0.14.2"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"crates.io","name":"libgit2-sys","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.13.5"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"crates.io","name":"git2","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.16.1"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/libgit2/libgit2/security/advisories/GHSA-8643-3wh5-rmjq","https://github.com/rust-lang/git2-rs/security/advisories/GHSA-m4ch-rfv5-x5g3","https://nvd.nist.gov/vuln/detail/CVE-2023-22742","https://github.com/rust-lang/git2-rs/commit/87934f87d36753ed702792ec063be7246444a8e1","https://github.com/rust-lang/git2-rs","https://rustsec.org/advisories/RUSTSEC-2023-0003.html"],"sourceUrl":"https://github.com/advisories/GHSA-m4ch-rfv5-x5g3","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-m4ch-rfv5-x5g3","identifiers":["GHSA-m4ch-rfv5-x5g3","CVE-2023-22742","GHSA-8643-3wh5-rmjq","RUSTSEC-2023-0003"]},"retained":false,"historicalAffected":[]}],"coverage":[]}