uutils coreutils mkdir Permission Exposure Race Condition with -m_CVE-2026-35353

{
    "lastseen": "",
    "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.",
    "published": "2026-04-22T16:08:09.923Z",
    "modified": "2026-04-22T16:08:09.923Z",
    "type": "cve",
    "title": "uutils coreutils mkdir Permission Exposure Race Condition with -m",
    "source": "canonical",
    "references": "https://github.com/uutils/coreutils/pull/10036\nhttps://github.com/uutils/coreutils/releases/tag/0.6.0",
    "id": "CVE-2026-35353",
    "bulletinFamily": "",
    "cwe": [
        "CWE-367"
    ],
    "cvelist": null,
    "sourceData": "Uutils coreutils 0",
    "sourceHref": "",
    "cvss": {
        "score": 3.3,
        "severity": "LOW",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
        "version": "3.1"
    },
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        "baseScore": 0,
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        "privilegesRequired": "",
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        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
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    "product": "coreutils",
    "version": "0",
    "vendor": "Uutils",
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}