diff --git a/eng/common/pipelines/templates/steps/publish-1es-artifact.yml b/eng/common/pipelines/templates/steps/publish-1es-artifact.yml
index a875f052dfe..15663cce30d 100644
--- a/eng/common/pipelines/templates/steps/publish-1es-artifact.yml
+++ b/eng/common/pipelines/templates/steps/publish-1es-artifact.yml
@@ -31,4 +31,6 @@ steps:
     inputs:
       artifactName: '$(PublishArtifactName)'
       targetPath: '${{ parameters.ArtifactPath }}'
-      sbomEnabled: ${{ parameters.SbomEnabled }}
+      # Disable sbom generation by default for forked PR builds to avoid a bunch of warnings
+      ${{ if not(and(eq(variables['Build.Reason'],'PullRequest'), eq(variables['System.PullRequest.IsFork'], 'True'))) }}:
+        sbomEnabled: ${{ parameters.SbomEnabled }}