Gitoxide before 0.42.0 Denial of Service via Crafted Commit-Graph File
CVE-2026-123533
Summary
Origin validation error in Windows Network Address Translation (NAT) allows an unauthorized attacker to perform spoofing over an adjacent network.
Products covered
Windows Server 2025 (Server Core installation)
Windows 11 Version 25H2 for ARM64-based Systems
Windows 11 Version 25H2 for x64-based Systems
Windows 11 Version 24H2 for ARM64-based Systems
Windows 11 Version 24H2 for x64-based Systems
Windows Server 2025
Windows 11 version 26H1 for x64-based Systems
Windows 11 Version 26H1 for ARM64-based Systems
Remediation
The mitigation is disabled by default. To enable it, apply the following registry key and reboot the machine. reg add HKLM\SYSTEM\CurrentControlSet\Services\Winnat /v DisableFailOver /t REG_DWORD /d 1 /f Install KB5099536. Install KB5101650. Install KB5101649.
Vendor-listed fixes
10.0.26100.33158
10.0.26200.8875
10.0.26100.8875
10.0.28000.2525
CVEs in this advisory 1
Updates
- Published by Microsoft Security Response Center
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
Our collector saw this advisory during a later source check.