Git for Windows: `git clone` from manipulated repositories can leak NTLM hashes to arbitrary servers_CVE-2026-32631

{
    "lastseen": "",
    "description": "Git for Windows is the Windows port of Git. Versions prior to 2.53.0.windows.3 do not have protections that prevent attackers from obtaining a user's NTLM hash. The NTLM hash can be obtained by tricking users into cloning a malicious repository, or checking out a malicious branch, that accesses an attacker-controlled server. By default, NTLM authentication does not need any user interaction. By brute-forcing the NTLMv2 hash (which is expensive, but possible), credentials can be extracted. This issue has been fixed in version 2.53.0.windows.3.",
    "published": "2026-04-15T17:26:44.154Z",
    "modified": "2026-04-15T18:44:04.155Z",
    "type": "cve",
    "title": "Git for Windows: `git clone` from manipulated repositories can leak NTLM hashes to arbitrary servers",
    "source": "GitHub_M",
    "references": "https://github.com/git-for-windows/git/security/advisories/GHSA-9j5h-h4m7-85hx\nhttps://github.com/git-for-windows/git/releases/tag/v2.53.0.windows.3\nhttps://learn.microsoft.com/en-au/windows/whats-new/deprecated-features#:~:text=NTLM\nhttps://support.microsoft.com/en-us/topic/upcoming-changes-to-ntlmv1-in-windows-11-version-24h2-and-windows-server-2025-c0554217-cdbc-420f-b47c-e02b2db49b2e\nhttps://techcommunity.microsoft.com/blog/windows-itpro-blog/the-evolution-of-windows-authentication/3926848",
    "id": "CVE-2026-32631",
    "bulletinFamily": "",
    "cwe": [
        "CWE-200"
    ],
    "cvelist": null,
    "sourceData": "git-for-windows git < 2.53.0.windows.3",
    "sourceHref": "",
    "cvss": {
        "score": 7.4,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "git",
    "version": "< 2.53.0.windows.3",
    "vendor": "git-for-windows",
    "ai_description": "",
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    "ai_score": 0
}