What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-15 · updated 2026-06-17
• Weakness: CWE-200

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.

Affected products

• git-for-windows git: before 2.53.0.windows.3

References

• https://github.com/git-for-windows/git/releases/tag/v2.53.0.windows.3
• https://github.com/git-for-windows/git/security/advisories/GHSA-9j5h-h4m7-85hx
• https://learn.microsoft.com/en-au/windows/whats-new/deprecated-features#:~:text=NTLM
• 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
• https://techcommunity.microsoft.com/blog/windows-itpro-blog/the-evolution-of-windows-authentication/3926848

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