{"id":"GHSA-gfxp-f68g-8x78","aliases":["RUSTSEC-2025-0067"],"status":"published","title":"LibYML: `libyml::string::yaml_string_extend` is unsound and unmaintained","description":"In version 0.0.4, `libyml::string::yaml_string_extend` was revised resulting in undefined behaviour, which is unsound.\n\nThe GitHub project for `libyml` was archived after unsoundness issues were raised.\n\nIf you rely on this crate, it is highly recommended switching to a maintained alternative.\n\n## Recommended alternatives\n\n- [`libyaml-safer`](https://crates.io/crates/libyaml-safer) \n- [`unsafe-libyaml-norway`](https://crates.io/crates/unsafe-libyaml-norway) - Maintained fork of `unsafe-libyaml`","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-758"],"published":"2025-09-11T12:00:00Z","modified":"2025-10-28T06:29:24Z","affected":[{"source":"ghsa","ecosystem":"crates.io","package":"libyml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.0.4"},{"last_affected":"0.0.5"}]}]},{"source":"osv","ecosystem":"crates.io","package":"libyml","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.4"},{"last_affected":"0.0.5"}]}]},{"source":"osv","ecosystem":"crates.io","package":"libyml","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"}]}]}],"references":[{"url":"https://github.com/rustsec/advisory-db/issues/2395","tags":["web","report"]},{"url":"https://rustsec.org/advisories/RUSTSEC-2025-0067.html","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-gfxp-f68g-8x78"},{"url":"https://github.com/sebastienrousseau/libyml","tags":["package"]},{"url":"https://crates.io/crates/libyml","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-gfxp-f68g-8x78","title":"LibYML: `libyml::string::yaml_string_extend` is unsound and unmaintained","description":"In version 0.0.4, `libyml::string::yaml_string_extend` was revised resulting in undefined behaviour, which is unsound.\n\nThe GitHub project for `libyml` was archived after unsoundness issues were raised.\n\nIf you rely on this crate, it is highly recommended switching to a maintained alternative.\n\n## Recommended alternatives\n\n- [`libyaml-safer`](https://crates.io/crates/libyaml-safer) \n- [`unsafe-libyaml-norway`](https://crates.io/crates/unsafe-libyaml-norway) - Maintained fork of `unsafe-libyaml`","status":"published","published":"2025-09-15T13:57:29Z","modified":"2025-09-15T13:57:30Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-758"],"updated_at":"2026-11-02T14:38:58.107905Z"}],"osv":[{"id":"GHSA-gfxp-f68g-8x78","title":"LibYML: `libyml::string::yaml_string_extend` is unsound and unmaintained","description":"In version 0.0.4, `libyml::string::yaml_string_extend` was revised resulting in undefined behaviour, which is unsound.\n\nThe GitHub project for `libyml` was archived after unsoundness issues were raised.\n\nIf you rely on this crate, it is highly recommended switching to a maintained alternative.\n\n## Recommended alternatives\n\n- [`libyaml-safer`](https://crates.io/crates/libyaml-safer) \n- [`unsafe-libyaml-norway`](https://crates.io/crates/unsafe-libyaml-norway) - Maintained fork of `unsafe-libyaml`","status":"published","published":"2025-09-15T13:57:29Z","modified":"2025-10-28T06:29:24.654618Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-758"],"updated_at":"2026-11-02T15:46:47.822182Z"},{"id":"RUSTSEC-2025-0067","title":"`libyml::string::yaml_string_extend` is unsound and unmaintained","description":"In version 0.0.4, `libyml::string::yaml_string_extend` was revised resulting in undefined behaviour, which is unsound.\n\nThe GitHub project for `libyml` was archived after unsoundness issues were raised.\n\nIf you rely on this crate, it is highly recommended switching to a maintained alternative.\n\n## Recommended alternatives\n\n- [`libyaml-safer`](https://crates.io/crates/libyaml-safer) \n- [`unsafe-libyaml-norway`](https://crates.io/crates/unsafe-libyaml-norway) - Maintained fork of `unsafe-libyaml`","status":"published","published":"2025-09-11T12:00:00Z","modified":"2025-10-28T06:29:24.654618Z","updated_at":"2026-11-02T15:53:39.971022Z"}]}}