diff --git a/Directory.Build.props b/Directory.Build.props
index 41fe96ac..b516ba81 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,11 +1,12 @@
 <Project>
   <!-- Warning freeze (2026-08-13, backlog cleared to zero): every .NET build in this repo
        must stay warning-free. Compiler, MSBuild and NuGet restore warnings are all fatal.
-       Deliberately includes NuGet audit advisories (NU1901-NU1904): a newly published CVE
-       against a referenced package fails the build until it is bumped or mitigated
-       (fail-closed, same philosophy as the ops alert chain). -->
+       Exception: NuGet audit advisories (NU1901-NU1904) stay warnings — a CVE published
+       against an already-referenced package must not block an unrelated hotfix deploy;
+       advisories are handled by bumping the package, not by failing the build. -->
   <PropertyGroup>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <MSBuildTreatWarningsAsErrors>true</MSBuildTreatWarningsAsErrors>
+    <WarningsNotAsErrors>NU1901;NU1902;NU1903;NU1904</WarningsNotAsErrors>
   </PropertyGroup>
 </Project>