Libxml2: libxml2: denial of service via crafted xml catalogs_CVE-2026-0992

{
    "lastseen": "",
    "description": "A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition.",
    "published": "2026-01-15T14:20:24.934Z",
    "modified": "2026-01-15T14:20:24.934Z",
    "type": "cve",
    "title": "Libxml2: libxml2: denial of service via crafted xml catalogs",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-0992\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2429975",
    "id": "CVE-2026-0992",
    "bulletinFamily": "",
    "cwe": [
        "CWE-400"
    ],
    "cvelist": null,
    "sourceData": "",
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    "cvss": {
        "score": 2.9,
        "severity": "LOW",
        "vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
        "version": "3.1"
    },
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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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
}