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Microsoft Security Response CenterCVE-2026-32631

GitHub: CVE-2026-32631 'git clone' from manipulated repositories can leak NTLM hashes

HighVendor CVSS 7.4 / 10 1 CVE Published Apr 14, 2026 at 7:00 AM UTC

Summary

CVE-2026-32631 is regarding a vulnerability where it is possible to obtain a user's NTLM hash by tricking them 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. GitHub created this CVE on their behalf. The documented Visual Studio updates incorporate updates in Git which address this vulnerability.

Please see CVE-2026-32631 for more information.

Products covered

  • Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)

  • Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)

  • Microsoft Visual Studio 2022 version 17.12

  • Microsoft Visual Studio 2022 version 17.14

  • Microsoft Visual Studio 2026 version 18.4

Remediation

Release Notes

Vendor-listed fixes

  • 16.11.55

  • 15.9.79

  • 17.12.19

  • 17.14.30

  • 18.4.4

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.