High 7.4Published Aug 21, 2026

CVE-2026-62960Git for Windows: Server-advertised bundle-uri can trigger outbound SMB callbacks via UNC and file:// paths on Windows

Updated under an hour ago (2026-10-19 06:30 UTC)

Does this affect you?

It affects git-for-windows git. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for git-for-windows git

Exploited in the last 30 days

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: 7.4 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Weakness (CWE): CWE-200, CWE-610
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Aug 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

git-for-windows git git_for_windows:git (from the name)	before 2.55.0.windows.4	CNA record

References

https://github.com/git-for-windows/git/security/advisories/GHSA-xrpg-8j9v-v282x-refsource-confirm
https://github.com/git-for-windows/git/commit/a93524749d7806870fd2b4b00a3812da1d6e5f4ax-refsource-misc
https://github.com/git-for-windows/git/releases/tag/v2.55.0.windows.4x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.