Denial of Service (DoS) vulnerability exists in the Protobuf PHP library during the parsing of untrusted input_MS:CVE-2026-6409

{
    "lastseen": "2026-04-25T09:15:44",
    "description": "",
    "published": "2026-04-23T08:11:06",
    "modified": "2026-04-24T21:44:57",
    "type": "mscve",
    "title": "Denial of Service (DoS) vulnerability exists in the Protobuf PHP library during the parsing of untrusted input",
    "source": "",
    "references": "",
    "id": "MS:CVE-2026-6409",
    "bulletinFamily": "microsoft",
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    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/SC:N/VI:N/SI:N/VA:H/SA:N",
        "version": "4.0"
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    "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-6409",
    "category_name": "News",
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