bito-code-review[bot] commented on code in PR #36933:
URL: https://github.com/apache/superset/pull/36933#discussion_r2911861349


##########
superset/security/manager.py:
##########
@@ -2810,6 +2821,17 @@ def validate_guest_token_resources(resources: 
GuestTokenResources) -> None:
                     embedded = 
EmbeddedDashboardDAO.find_by_id(str(resource["id"]))
                     if not embedded:
                         raise EmbeddedDashboardNotFoundError()
+            elif resource["type"] == 
GuestTokenResourceType.CHART_PERMALINK.value:
+                # Validate that the chart permalink exists
+                permalink_key = str(resource["id"])
+                try:
+                    permalink_value = 
GetExplorePermalinkCommand(permalink_key).run()
+                    if not permalink_value:
+                        raise EmbeddedChartPermalinkNotFoundError()
+                except EmbeddedChartPermalinkNotFoundError:
+                    raise
+                except (ExplorePermalinkGetFailedError, ValueError) as ex:
+                    raise EmbeddedChartPermalinkNotFoundError() from ex

Review Comment:
   <!-- Bito Reply -->
   The exception handling is correctly designed to propagate access denials 
like ChartAccessDeniedError while converting only genuine lookup failures 
(ExplorePermalinkGetFailedError, ValueError) to 'not found' errors, preventing 
security issues from masking access restrictions.
   
   **superset/security/manager.py**
   ```
   elif resource["type"] == GuestTokenResourceType.CHART_PERMALINK.value:
                   # Validate that the chart permalink exists
                   permalink_key = str(resource["id"])
                   try:
                       permalink_value = 
GetExplorePermalinkCommand(permalink_key).run()
                       if not permalink_value:
                           raise EmbeddedChartPermalinkNotFoundError()
                   except EmbeddedChartPermalinkNotFoundError:
                       raise
                   except (ExplorePermalinkGetFailedError, ValueError) as ex:
                       raise EmbeddedChartPermalinkNotFoundError() from ex
   ```



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