Xorg: xwayland: x.org x server: information disclosure or denial of service via out-of-bounds read in xkb modifier map handling_CVE-2026-34002

{
    "lastseen": "",
    "description": "A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB (X Keyboard Extension) modifier map handling. An attacker with access to the X11 server can exploit this by sending a malformed request, which causes the server to read beyond its intended memory boundaries. This can lead to the exposure of sensitive information or cause the server to crash, resulting in a denial of service.",
    "published": "2026-05-05T14:41:10.065Z",
    "modified": "2026-05-05T14:41:10.065Z",
    "type": "cve",
    "title": "Xorg: xwayland: x.org x server: information disclosure or denial of service via out-of-bounds read in xkb modifier map handling",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-34002\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2451112",
    "id": "CVE-2026-34002",
    "bulletinFamily": "",
    "cwe": [
        "CWE-805"
    ],
    "cvelist": null,
    "sourceData": "",
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    "cvss": {
        "score": 6.1,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L",
        "version": "3.1"
    },
    "cvss2": [],
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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": "Red Hat Enterprise Linux 10",
    "version": "",
    "vendor": "Red Hat",
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    "ai_score": 0
}