{"id":"CVE-2026-35352","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-35352","summary":"uutils coreutils has a Time-of-Check to Time-of-Use (TOCTOU) race condition","details":"A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mkfifo utility of uutils coreutils. The utility creates a FIFO and then performs a path-based chmod to set permissions. A local attacker with write access to the parent directory can swap the newly created FIFO for a symbolic link between these two operations. This redirects the chmod call to an arbitrary file, potentially enabling privilege escalation if the utility is run with elevated privileges.","published":"2026-04-22T18:31:45Z","modified":"2026-09-10T03:51:01.432445139Z","cvss":{"score":7,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.00147,"percentile":0.04325,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"coreutils","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35352"},{"type":"WEB","url":"https://github.com/uutils/coreutils/issues/10020"},{"type":"PACKAGE","url":"https://github.com/uutils/coreutils"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/04/4"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/04/5"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/04/6"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T03:51:01.432445139Z"}}