CVE-2026-62900 .NET Information Disclosure Vulnerability

Medium 5.9 Published Updated

An attacker can disclose sensitive information over the network due to improper data removal in the .NET runtime.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-62900?

CVE-2026-62900 is a medium-severity vulnerability in Microsoft .Net, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper removal of sensitive information before storage or transfer in .NET allows an unauthorized attacker to disclose information over a network.

Weakness: CWE-212

Which versions are affected by CVE-2026-62900?

18 open source packages ship an affected version, including Microsoft.Build.Tasks.Git, dotnet and dotnet-sdk. It affects 3 products.

PackageAffectedFixed in
Microsoft.Build.Tasks.Git NuGetAll versionsNone
Microsoft.Build.Tasks.Git NuGetAll versionsNone
Microsoft.Build.Tasks.Git NuGetFrom 10.0.10210.0.111
Microsoft.Build.Tasks.Git NuGetFrom 10.0.10210.0.111
Microsoft.Build.Tasks.Git NuGetFrom 10.0.200 to 10.0.204None
Microsoft.Build.Tasks.Git NuGetFrom 10.0.200 to 10.0.204None
12 more packages
Microsoft.Build.Tasks.Git NuGetFrom 10.0.30010.0.303
Microsoft.Build.Tasks.Git NuGetFrom 10.0.30010.0.303
dotnet BitnamiFrom 8.0.08.0.30, 9.0.19, 10.0.11
dotnet-sdk BitnamiFrom 8.0.08.0.30, 9.0.19, 10.0.11
Microsoft.SourceLink.AzureRepos.Git NuGetAll versionsNone
Microsoft.SourceLink.AzureRepos.Git NuGetAll versionsNone
Microsoft.SourceLink.AzureRepos.Git NuGetFrom 10.0.10210.0.111
Microsoft.SourceLink.AzureRepos.Git NuGetFrom 10.0.10210.0.111
Microsoft.SourceLink.AzureRepos.Git NuGetFrom 10.0.200 to 10.0.204None
Microsoft.SourceLink.AzureRepos.Git NuGetFrom 10.0.200 to 10.0.204None
Microsoft.SourceLink.AzureRepos.Git NuGetFrom 10.0.30010.0.303
Microsoft.SourceLink.AzureRepos.Git NuGetFrom 10.0.30010.0.303

Products include Microsoft .Net, Microsoft Visual Studio 2022, Microsoft Visual Studio 2026.

How do I fix CVE-2026-62900?

Upgrade Microsoft.Build.Tasks.Git to a fixed version for your release line: 10.0.111 or 10.0.303.

Is CVE-2026-62900 being exploited?

There is no known exploitation of CVE-2026-62900 in the wild and no public exploit code.

All Microsoft .Net vulnerabilities

Sources

Also known as BELL-CVE-2026-62900, BIT-dotnet-2026-62900, BIT-dotnet-sdk-2026-62900, GHSA-23fw-v26w-5fgq, MINI-hp9v-x6hf-wjxx, MINI-xqg4-wjgj-gmcv and 1 more.

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