diff --git a/UNDF-REGISTRY.json b/UNDF-REGISTRY.json
index 27f77dc3e..2632ca7e2 100644
--- a/UNDF-REGISTRY.json
+++ b/UNDF-REGISTRY.json
@@ -945,5 +945,9 @@
   "supertuxkart-0001-0001": "UNDF-2026-000000944",
   "supertuxkart-0002-0002": "UNDF-2026-000000945",
   "minetest-0004-0004": "UNDF-2026-000000946",
-  "minetest-0005-0005": "UNDF-2026-000000947"
+  "minetest-0005-0005": "UNDF-2026-000000947",
+  "open-webui-0001-0001": "UNDF-2026-000000948",
+  "tiled-0001-0001": "UNDF-2026-000000949",
+  "tiled-0002-0002": "UNDF-2026-000000950",
+  "tiled-0003-0003": "UNDF-2026-000000951"
 }
diff --git a/defects/open-webui-0001/patch/open-webui-0001.patch b/defects/open-webui-0001/patch/open-webui-0001.patch
new file mode 100644
index 000000000..2c5c73063
--- /dev/null
+++ b/defects/open-webui-0001/patch/open-webui-0001.patch
@@ -0,0 +1,24 @@
+# UNDF: UNDF-2026-000000948
+--- a/backend/open_webui/config.py
++++ b/backend/open_webui/config.py
+@@ -266,10 +266,17 @@
+                     decoded_value = json.loads(redis_value)
+
+                     # Update the in-memory value if different
+                     if self._state[key].value != decoded_value:
+                         self._state[key].value = decoded_value
+-                        log.info(f'Updated {key} from Redis: {decoded_value}')
++                        log.info(f'Updated {key} from Redis: {_redact_config_value(key, decoded_value)}')
+
+                 except json.JSONDecodeError:
+                     log.error(f'Invalid JSON format in Redis for {key}: {redis_value}')
+
+         return self._state[key].value
++
++
++_SENSITIVE_KEY_SUBSTRINGS = ('SECRET', 'KEY', 'TOKEN', 'PASSWORD', 'CREDENTIAL')
++
++def _redact_config_value(key: str, value):
++    if any(s in key.upper() for s in _SENSITIVE_KEY_SUBSTRINGS):
++        return '***REDACTED***'
++    return value
diff --git a/defects/open-webui-0001/test/open-webui-0001-test.py b/defects/open-webui-0001/test/open-webui-0001-test.py
new file mode 100644
index 000000000..79fa942ce
--- /dev/null
+++ b/defects/open-webui-0001/test/open-webui-0001-test.py
@@ -0,0 +1,87 @@
+"""
+Unit test for open-webui-0001: CWE-312 Logged Secret in PersistentConfig Redis sync.
+
+The defect: AppConfig.__getattr__ logs the decoded value of ANY PersistentConfig
+key when it detects a change from Redis, including OPENAI_API_KEYS,
+GOOGLE_CLIENT_SECRET, MICROSOFT_CLIENT_SECRET, RAG_OPENAI_API_KEY, etc.
+
+    log.info(f'Updated {key} from Redis: {decoded_value}')
+
+The fix: redact values for keys whose names contain SECRET, KEY, TOKEN,
+PASSWORD, or CREDENTIAL.
+"""
+
+import unittest
+
+
+# --- Inline the fix so the test is self-contained ---
+
+_SENSITIVE_KEY_SUBSTRINGS = ('SECRET', 'KEY', 'TOKEN', 'PASSWORD', 'CREDENTIAL')
+
+
+def _redact_config_value(key: str, value):
+    if any(s in key.upper() for s in _SENSITIVE_KEY_SUBSTRINGS):
+        return '***REDACTED***'
+    return value
+
+
+class TestRedactConfigValue(unittest.TestCase):
+    """Verify that sensitive config keys are redacted before logging."""
+
+    def test_openai_api_keys_redacted(self):
+        result = _redact_config_value('OPENAI_API_KEYS', ['sk-abc123', 'sk-def456'])
+        self.assertEqual(result, '***REDACTED***')
+
+    def test_google_client_secret_redacted(self):
+        result = _redact_config_value('GOOGLE_CLIENT_SECRET', 'GOCspx-secret-value')
+        self.assertEqual(result, '***REDACTED***')
+
+    def test_microsoft_client_secret_redacted(self):
+        result = _redact_config_value('MICROSOFT_CLIENT_SECRET', 'ms-secret-value')
+        self.assertEqual(result, '***REDACTED***')
+
+    def test_rag_openai_api_key_redacted(self):
+        result = _redact_config_value('RAG_OPENAI_API_KEY', 'sk-rag-key')
+        self.assertEqual(result, '***REDACTED***')
+
+    def test_datalab_marker_api_key_redacted(self):
+        result = _redact_config_value('DATALAB_MARKER_API_KEY', 'marker-key-123')
+        self.assertEqual(result, '***REDACTED***')
+
+    def test_jwt_token_redacted(self):
+        result = _redact_config_value('JWT_TOKEN', 'eyJhbGciOi...')
+        self.assertEqual(result, '***REDACTED***')
+
+    def test_database_password_redacted(self):
+        result = _redact_config_value('DATABASE_PASSWORD', 'hunter2')
+        self.assertEqual(result, '***REDACTED***')
+
+    def test_credential_path_redacted(self):
+        result = _redact_config_value('OAUTH_CREDENTIAL', 'cred-value')
+        self.assertEqual(result, '***REDACTED***')
+
+    def test_non_sensitive_key_not_redacted(self):
+        result = _redact_config_value('ENABLE_OPENAI_API', True)
+        self.assertEqual(result, True)
+
+    def test_model_name_not_redacted(self):
+        result = _redact_config_value('DEFAULT_MODEL', 'gpt-4')
+        self.assertEqual(result, 'gpt-4')
+
+    def test_base_urls_not_redacted(self):
+        urls = ['https://api.openai.com/v1']
+        result = _redact_config_value('OPENAI_API_BASE_URLS', urls)
+        self.assertEqual(result, urls)
+
+    def test_cache_ttl_not_redacted(self):
+        result = _redact_config_value('MODELS_CACHE_TTL', 300)
+        self.assertEqual(result, 300)
+
+    def test_case_insensitive(self):
+        """Keys with mixed case should still be redacted."""
+        result = _redact_config_value('My_Api_Key', 'value')
+        self.assertEqual(result, '***REDACTED***')
+
+
+if __name__ == '__main__':
+    unittest.main()