{"id":"CVE-2026-35357","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-35357","summary":"uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition","details":"The cp utility in uutils coreutils is vulnerable to an information disclosure race condition. Destination files are initially created with umask-derived permissions (e.g., 0644) before being restricted to their final mode (e.g., 0600) later in the process. A local attacker can race to open the file during this window; once obtained, the file descriptor remains valid and readable even after the permissions are tightened, exposing sensitive or private file contents.","published":"2026-04-22T18:31:45Z","modified":"2026-09-10T03:51:00.841240284Z","cvss":{"score":4.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.00091,"percentile":0.00526,"asOf":"2026-09-13"},"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-2026-35357"},{"type":"WEB","url":"https://github.com/uutils/coreutils/issues/10011"},{"type":"PACKAGE","url":"https://github.com/uutils/coreutils"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T03:51:00.841240284Z"}}