CVE-2026-62960

high

Description

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.

References

https://github.com/git-for-windows/git/security/advisories/GHSA-xrpg-8j9v-v282

https://github.com/git-for-windows/git/releases/tag/v2.55.0.windows.4

https://github.com/git-for-windows/git/commit/a93524749d7806870fd2b4b00a3812da1d6e5f4a

Details

Source: Mitre, NVD

Published: 2026-08-21

Updated: 2026-08-21

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.4

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Severity: High