{"id":"GHSA-jcjr-rh8q-7xqf","summary":"ln: rejects non-UTF-8 source filenames in target-directory mode","details":"In target-directory forms (`ln SOURCE... DIRECTORY`), `ln` rejects source paths with non-UTF-8 filename bytes, while GNU accepts them. Breaks GNU compatibility for byte-oriented filenames on Unix filesystems.\n\nPoC:\n```\nname=$(printf 'bad_\\377'); mkdir dst; : \u003e \"$name\"; ln \"$name\" dst\n# GNU: exit 0, creates dst/bad_\\377 ; uutils: exit 1, dst empty\n```\n\n---\n_Zellic private finding (zellic-ext/coreutils-private PR #84). Reported in the Zellic *uutils coreutils Program Security Assessment* (for Canonical, Jan 2026), audited commit `3a07ffc5a9bd4c283e75afa548ba1f1957bad242`._","aliases":["CVE-2026-35373"],"modified":"2026-07-06T20:11:22.935352Z","published":"2026-07-06T19:53:39Z","database_specific":{"nvd_published_at":null,"cwe_ids":["CWE-176"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2026-07-06T19:53:39Z"},"references":[{"type":"WEB","url":"https://github.com/uutils/coreutils/security/advisories/GHSA-jcjr-rh8q-7xqf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35373"},{"type":"WEB","url":"https://github.com/uutils/coreutils/pull/11403"},{"type":"PACKAGE","url":"https://github.com/uutils/coreutils"}],"affected":[{"package":{"name":"uu_ln","ecosystem":"crates.io","purl":"pkg:cargo/uu_ln"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.6.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-jcjr-rh8q-7xqf/GHSA-jcjr-rh8q-7xqf.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"}]}