CVE-2026-62900: Microsoft Security Advisory CVE-2026-62900 – .NET Information Disclosure Vulnerability

September 8, 2026

Microsoft is releasing this security advisory to provide information about a vulnerability in Microsoft.Build.Tasks.Git and Microsoft.SourceLink.AzureRepos.Git. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

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

References

github.com/advisories/GHSA-23fw-v26w-5fgq
github.com/dotnet/sourcelink/security/advisories/GHSA-23fw-v26w-5fgq
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62900
nvd.nist.gov/vuln/detail/CVE-2026-62900

Code Behaviors & Features

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