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CVE-2026-100408

Git for Windows: git-credential-wincred Erase Path Heap Overflow

Git for Windows is the Windows port of Git. From 2.43.0.windows.1 until 2.55.0.windows.3, when a matching git:* credential exists in Windows Credential Manager and a git-credential-wincred erase input includes a password field, the operation in contrib/credential/wincred/git-credential-wincred.c allocates a buffer of exactly CredentialBlobSize bytes in match_cred_password() and then uses wcsncpy_s() to copy the corresponding number of wide characters plus a terminating NUL. The destination capacity is also supplied in bytes instead of WCHAR elements, allowing a fixed two-byte NUL write past the allocation before the password comparison determines whether CredDeleteW() should remove the credential; erase without a password field does not enter this comparison path. The helper can terminate with Windows heap-corruption status, and git credential reject can appear successful while the rejected credential remains stored. This issue is fixed in version 2.55.0.windows.3.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Gitforwindows
Products
Git
CVE-2026-100407

Git for Windows: git-credential-wincred OAuth Store Heap Overflow

Git for Windows is the Windows port of Git. From 2.44.0.windows.1 until 2.55.0.windows.3, the git-credential-wincred store operation in contrib/credential/wincred/git-credential-wincred.c uses _scwprintf() to size a formatted wide-character credential buffer without space for the terminating NUL when both password and oauth_refresh_token are present. The operation also passes a byte count to _snwprintf_s() where a wide-character count is required, allowing the terminator to be written one WCHAR past the heap allocation before CredWriteW() persists the credential. The resulting fixed two-byte NUL overwrite can terminate the helper with Windows heap-corruption status and can cause git credential approve to report success even though the OAuth credential was not stored. This issue is fixed in version 2.55.0.windows.3.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Gitforwindows
Products
Git
CVE-2026-62960

Git for Windows: Server-advertised bundle-uri can trigger outbound SMB callbacks via UNC and file:// paths on Windows

Git for Windows is the Windows port of Git. Prior to 2.55.0.windows.4, a malicious remote Git server can advertise a bundle URI that reaches transport_get_remote_bundle_uri(), fetch_bundle_uri_internal(), and copy_uri_to_file() in bundle-uri.c during clone or fetch when transfer.bundleuri=true. Non-HTTP(S) values are treated as local filesystem paths, and file URI prefixes are removed, so a bare UNC path or file URI targeting an attacker-controlled share causes Windows to initiate an outbound SMB connection. This can expose NTLM authentication material to the attacker-selected host. This issue is fixed in version 2.55.0.windows.4.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Gitforwindows
Products
Git
CVE-2025-66413

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

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 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Gitforwindows
Products
Git
CVE-2026-32631

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

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.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Gitforwindows
Products
Git
CVE-2022-31012

Git for Windows' installer can be tricked into executing an untrusted binary

Git for Windows is a fork of Git that contains Windows-specific patches. This vulnerability in versions prior to 2.37.1 lets Git for Windows' installer execute a binary into `C:\mingw64\bin\git.exe` by mistake. This only happens upon a fresh install, not when upgrading Git for Windows. A patch is included in version 2.37.1. Two workarounds are available. Create the `C:\mingw64` folder and remove read/write access from this folder, or disallow arbitrary authenticated users to create folders in `C:\`.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Gitforwindows
Products
Git
CVE-2021-46101

git: git.cmd can be run directly when using git pull to update the local warehouse

In Git for windows through 2.34.1 when using git pull to update the local warehouse, git.cmd can be run directly.

CVSS 3.1 · 7.5 High EPSS 1.4% KEV · Not listed
Vendors
Gitforwindows
Products
Git
CVE-2018-11235

git: arbitrary code execution when recursively cloning a malicious repository

In Git before 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2, 2.16.x before 2.16.4, and 2.17.x before 2.17.1, remote code execution can occur. With a crafted .gitmodules file, a malicious project can execute an arbitrary script on a machine that runs "git clone --recurse-submodules" because submodule "names" are obtained from this file, and then appended to $GIT_DIR/modules, leading to directory traversal with "../" in a name. Finally, post-checkout hooks from a submodule are executed, bypassing the intended design in which hooks are not obtained from a remote server.

CVSS 3.0 · 7.8 High EPSS 47.4% KEV · Not listed
Vendors
Canonical Debian Git-scm and 2 more
Products
Ubuntu Linux Debian Linux Git and 7 more