1 files changed, 5 insertions, 0 deletions
diff --git a/Jellyfin.Server.Implementations/Item/BaseItemRepository.cs b/Jellyfin.Server.Implementations/Item/BaseItemRepository.cs
index f1afd3543..14300d237 100644
--- a/Jellyfin.Server.Implementations/Item/BaseItemRepository.cs
+++ b/Jellyfin.Server.Implementations/Item/BaseItemRepository.cs
@@ -1290,6 +1290,11 @@ public sealed class BaseItemRepository(
             {
                 foreach (var ancestorId in item.AncestorIds)
                 {
+                    if (!context.BaseItems.Any(f => f.Id == ancestorId))
+                    {
+                        throw new InvalidOperationException($"Cannot link non-existent parent: {ancestorId}");
+                    }
+
                     context.AncestorIds.Add(new AncestorId()
                     {
                         ParentItemId = ancestorId,