uutils coreutils chroot Local Privilege Escalation and chroot Escape in via Name Service Switch (NSS) Injection_CVE-2026-35368

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    "lastseen": "",
    "description": "A vulnerability exists in the chroot utility of uutils coreutils when using the --userspec option. The utility resolves the user specification via getpwnam() after entering the chroot but before dropping root privileges. On glibc-based systems, this can trigger the Name Service Switch (NSS) to load shared libraries (e.g., libnss_*.so.2) from the new root directory. If the NEWROOT is writable by an attacker, they can inject a malicious NSS module to execute arbitrary code as root, facilitating a full container escape or privilege escalation.",
    "published": "2026-04-22T16:08:48.965Z",
    "modified": "2026-04-22T16:08:48.965Z",
    "type": "cve",
    "title": "uutils coreutils chroot Local Privilege Escalation and chroot Escape in via Name Service Switch (NSS) Injection",
    "source": "canonical",
    "references": "https://github.com/uutils/coreutils/issues/10327",
    "id": "CVE-2026-35368",
    "bulletinFamily": "",
    "cwe": [
        "CWE-426"
    ],
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    "cvss": {
        "score": 7.2,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
        "version": "3.1"
    },
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    "href": "",
    "category_name": "CVE",
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    "product": "coreutils",
    "version": "",
    "vendor": "Uutils",
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