CVE-2026-62960 (GCVE-0-2026-62960)

Vulnerability from cvelistv5 – Published: 2026-08-21 20:05 – Updated: 2026-08-26 17:38
VLAI
Title
Git for Windows: Server-advertised bundle-uri can trigger outbound SMB callbacks via UNC and file:// paths on Windows
Summary
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.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 17:37 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-610 - Externally Controlled Reference to a Resource in Another Sphere
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7675 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
git-for-windows git Affected: < 2.55.0.windows.4
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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