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CVE-2025-66413

Git for Windows leaks NTLM hash when cloning from an attacker-controlled server

Published: Mar 10, 2026Updated: Apr 21, 2026 Sources: CVE List NVDCWE-200
NVD MITRE
7.4CVSSHIGH
EPSS Score
0.3%
Top 81.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Git for Windows is the Windows port of Git. Prior to 2.53.0(2), it is possible to obtain a user's NTLM hash by tricking them into cloning from a malicious server. Since NTLM hashing is weak, it is possible for the attacker to brute-force the user's account name and password. This vulnerability is fixed in 2.53.0(2).

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-200CWE-307

Affected Products

gitgit-for-windows
On-prem
DevTools & CI / source-control
gitgitforwindows
Mixed
DevTools & CI / source-control
git-for-windowscommercialUSDevTools & CI
gitforwindowscommercialDevTools & CIaka git for windows, git

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Credential Access
View detailed technique mapping

References

https://github.com/git-for-windows/git/security/advisories/GHSA-hv9c-4jm9-jh3x
github.com
https://github.com/git-for-windows/git/releases/tag/v2.53.0.windows.2
github.com

Timeline

Published
Mar 10, 2026
Last Updated
Apr 21, 2026

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