{"id":"GHSA-mj6p-44ch-cq69","revision":"f84a4cc0b35c4e32b0968e7c576deb56","records":[{"revision":"f84a4cc0b35c4e32b0968e7c576deb56","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"GHSA-mj6p-44ch-cq69","aliases":["CVE-2026-35353"],"title":"mkdir: -m exposes directory with umask perms before chmod (race window)","description":"The mkdir utility in uutils coreutils incorrectly applies permissions when using the -m flag by creating a directory with umask-derived permissions (typically 0755) before subsequently changing them to the requested mode via a separate chmod system call. In multi-user environments, this introduces a brief window where a directory intended to be private is accessible to other users, potentially leading to unauthorized data access.\n\n---\n_Zellic finding 3.48. Reported in the Zellic *uutils coreutils Program Security Assessment* (for Canonical, Jan 2026), audited commit `3a07ffc5a9bd4c283e75afa548ba1f1957bad242`._","state":0,"publishedAt":"2026-07-06T20:16:16+00:00","modifiedAt":"2026-07-06T20:41:29.914959+00:00","affected":[{"ecosystem":"crates.io","name":"uu_mkdir","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.6.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"LOW"}],"references":["https://github.com/uutils/coreutils/security/advisories/GHSA-mj6p-44ch-cq69","https://nvd.nist.gov/vuln/detail/CVE-2026-35353","https://github.com/uutils/coreutils/pull/10036","https://github.com/uutils/coreutils/commit/037b9583bc03d814e8516df54ebcda6f681fe1f8","https://github.com/uutils/coreutils","https://github.com/uutils/coreutils/releases/tag/0.6.0"],"sourceUrl":"https://github.com/advisories/GHSA-mj6p-44ch-cq69","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-mj6p-44ch-cq69","identifiers":["GHSA-mj6p-44ch-cq69","CVE-2026-35353"]},"retained":false,"historicalAffected":[]}],"coverage":[]}