uutils coreutils ln Security Bypass via Improper Handling of the –no-dereference Flag_CVE-2026-35372

{
    "lastseen": "",
    "description": "A logic error in the ln utility of uutils coreutils allows the utility to dereference a symbolic link target even when the --no-dereference (or -n) flag is explicitly provided. The implementation previously only honored the \"no-dereference\" intent if the --force (overwrite) mode was also enabled. This flaw causes ln to follow a symbolic link that points to a directory and create new links inside that target directory instead of treating the symbolic link itself as the destination. In environments where a privileged user or system script uses ln -n to update a symlink, a local attacker could manipulate existing symbolic links to redirect file creation into sensitive directories, potentially leading to unauthorized file creation or system misconfiguration.",
    "published": "2026-04-22T16:08:58.696Z",
    "modified": "2026-04-22T16:08:58.696Z",
    "type": "cve",
    "title": "uutils coreutils ln Security Bypass via Improper Handling of the --no-dereference Flag",
    "source": "canonical",
    "references": "https://github.com/uutils/coreutils/pull/11253\nhttps://github.com/uutils/coreutils/releases/tag/0.8.0",
    "id": "CVE-2026-35372",
    "bulletinFamily": "",
    "cwe": [
        "CWE-61"
    ],
    "cvelist": null,
    "sourceData": "Uutils coreutils 0",
    "sourceHref": "",
    "cvss": {
        "score": 5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "coreutils",
    "version": "0",
    "vendor": "Uutils",
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    "ai_score": 0
}