Polkit: polkit: denial of service via unbounded input processing through standard input_CVE-2026-4897

{
    "lastseen": "",
    "description": "A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system.",
    "published": "2026-03-26T14:56:05.943Z",
    "modified": "2026-03-30T15:53:47.626Z",
    "type": "cve",
    "title": "Polkit: polkit: denial of service via unbounded input processing through standard input",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-4897\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2451739",
    "id": "CVE-2026-4897",
    "bulletinFamily": "",
    "cwe": [
        "CWE-770"
    ],
    "cvelist": null,
    "sourceData": "",
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    "cvss": {
        "score": 5.5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
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        "privilegesRequired": "",
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        "confidentialityImpact": "",
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        "availabilityImpact": "",
        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
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    "product": "Red Hat Enterprise Linux 10",
    "version": "",
    "vendor": "Red Hat",
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    "ai_score": 0
}