Libsolv: heap buffer overflow in libsolv repo_add_solv via negative maxsize from crafted .solv file_CVE-2026-9149

{
    "lastseen": "",
    "description": "A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted `.solv` file containing negative size values in the `repo_add_solv` function. This leads to an undersized memory allocation and a subsequent out-of-bounds write. An attacker could exploit this to cause a denial of service (DoS).",
    "published": "2026-05-20T23:34:56.473Z",
    "modified": "2026-05-20T23:34:56.473Z",
    "type": "cve",
    "title": "Libsolv: heap buffer overflow in libsolv repo_add_solv via negative maxsize from crafted .solv file",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-9149\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2460380\nhttps://github.com/openSUSE/libsolv/pull/617",
    "id": "CVE-2026-9149",
    "bulletinFamily": "",
    "cwe": [
        "CWE-122"
    ],
    "cvelist": null,
    "sourceData": "",
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    "cvss": {
        "score": 6.5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
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        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "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
}