diff --git a/UNDF-REGISTRY.json b/UNDF-REGISTRY.json
index 108f55837..0a7e624d7 100644
--- a/UNDF-REGISTRY.json
+++ b/UNDF-REGISTRY.json
@@ -803,5 +803,6 @@
   "scribus-0001": "UNDF-2026-000000802",
   "scribus-0002": "UNDF-2026-000000803",
   "scribus-0003": "UNDF-2026-000000804",
-  "shotcut-0001": "UNDF-2026-000000805"
+  "shotcut-0001": "UNDF-2026-000000805",
+  "obs-studio-0001": "UNDF-2026-000000806"
 }
diff --git a/defects/obs-studio/patch/obs-studio-0001-audio-render-order-linear-scan.patch b/defects/obs-studio/patch/obs-studio-0001-audio-render-order-linear-scan.patch
index e8d486ccd..b1c535c1a 100644
--- a/defects/obs-studio/patch/obs-studio-0001-audio-render-order-linear-scan.patch
+++ b/defects/obs-studio/patch/obs-studio-0001-audio-render-order-linear-scan.patch
@@ -1,3 +1,4 @@
+# UNDF: UNDF-2026-000000806
 # UNDF: (leave blank)
 # CWE-407: Algorithmic Complexity — push_audio_tree da_find O(N²) per frame
 #
diff --git a/defects/vlc/patch/vlc-0001-randomizer-remove-linear-scan.patch b/defects/vlc/patch/vlc-0001-randomizer-remove-linear-scan.patch
index ee2165f9a..1c5efd196 100644
--- a/defects/vlc/patch/vlc-0001-randomizer-remove-linear-scan.patch
+++ b/defects/vlc/patch/vlc-0001-randomizer-remove-linear-scan.patch
@@ -1,3 +1,4 @@
+# UNDF: UNDF-2026-000000331
 # UNDF: (leave blank)
 # CWE-407: Algorithmic Complexity — randomizer_Remove O(N×C) linear scan
 #