{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-32631", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-12T15:29:36.559Z", "datePublished": "2026-04-15T17:26:44.154Z", "dateUpdated": "2026-04-15T18:44:04.155Z"}, "containers": {"cna": {"title": "Git for Windows: `git clone` from manipulated repositories can leak NTLM hashes to arbitrary servers", "problemTypes": [{"descriptions": [{"cweId": "CWE-200", "lang": "en", "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/git-for-windows/git/security/advisories/GHSA-9j5h-h4m7-85hx", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/git-for-windows/git/security/advisories/GHSA-9j5h-h4m7-85hx"}, {"name": "https://github.com/git-for-windows/git/releases/tag/v2.53.0.windows.3", "tags": ["x_refsource_MISC"], "url": "https://github.com/git-for-windows/git/releases/tag/v2.53.0.windows.3"}, {"name": "https://learn.microsoft.com/en-au/windows/whats-new/deprecated-features#:~:text=NTLM", "tags": ["x_refsource_MISC"], "url": "https://learn.microsoft.com/en-au/windows/whats-new/deprecated-features#:~:text=NTLM"}, {"name": "https://support.microsoft.com/en-us/topic/upcoming-changes-to-ntlmv1-in-windows-11-version-24h2-and-windows-server-2025-c0554217-cdbc-420f-b47c-e02b2db49b2e", "tags": ["x_refsource_MISC"], "url": "https://support.microsoft.com/en-us/topic/upcoming-changes-to-ntlmv1-in-windows-11-version-24h2-and-windows-server-2025-c0554217-cdbc-420f-b47c-e02b2db49b2e"}, {"name": "https://techcommunity.microsoft.com/blog/windows-itpro-blog/the-evolution-of-windows-authentication/3926848", "tags": ["x_refsource_MISC"], "url": "https://techcommunity.microsoft.com/blog/windows-itpro-blog/the-evolution-of-windows-authentication/3926848"}], "affected": [{"vendor": "git-for-windows", "product": "git", "versions": [{"version": "< 2.53.0.windows.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-04-15T17:26:44.154Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-9j5h-h4m7-85hx", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-15T18:43:55.597018Z", "id": "CVE-2026-32631", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-15T18:44:04.155Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-32631", "lastModified": "2026-04-15T18:17:17.437", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-04-15T18:17:17.437", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/git-for-windows/git/releases/tag/v2.53.0.windows.3"}, {"source": "security-advisories@github.com", "url": "https://github.com/git-for-windows/git/security/advisories/GHSA-9j5h-h4m7-85hx"}, {"source": "security-advisories@github.com", "url": "https://learn.microsoft.com/en-au/windows/whats-new/deprecated-features#:~:text=NTLM"}, {"source": "security-advisories@github.com", "url": "https://support.microsoft.com/en-us/topic/upcoming-changes-to-ntlmv1-in-windows-11-version-24h2-and-windows-server-2025-c0554217-cdbc-420f-b47c-e02b2db49b2e"}, {"source": "security-advisories@github.com", "url": "https://techcommunity.microsoft.com/blog/windows-itpro-blog/the-evolution-of-windows-authentication/3926848"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}