diff --git a/CHANGELOG.md b/CHANGELOG.md
index b499323d7..17acd5825 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -174,6 +174,7 @@
     Bug #5196: Dwarven ghosts do not use idle animations
     Bug #5206: A "class does not have NPC stats" error when player's follower kills an enemy with damage spell
     Bug #5209: Spellcasting ignores race height
+    Bug #5210: AiActivate allows actors to open dialogue and inventory windows
     Feature #1774: Handle AvoidNode
     Feature #2229: Improve pathfinding AI
     Feature #3025: Analogue gamepad movement controls
diff --git a/apps/openmw/mwmechanics/aipursue.cpp b/apps/openmw/mwmechanics/aipursue.cpp
index d6824f2b1..1445a85d6 100644
--- a/apps/openmw/mwmechanics/aipursue.cpp
+++ b/apps/openmw/mwmechanics/aipursue.cpp
@@ -3,6 +3,7 @@
 #include <components/esm/aisequence.hpp>
 
 #include "../mwbase/environment.hpp"
+#include "../mwbase/windowmanager.hpp"
 #include "../mwbase/world.hpp"
 
 #include "../mwworld/class.hpp"
@@ -58,7 +59,7 @@ bool AiPursue::execute (const MWWorld::Ptr& actor, CharacterController& characte
     if (pathTo(actor, dest, duration, pathTolerance) &&
         std::abs(dest.z() - actorPos.z()) < pathTolerance) // check the true distance in case the target is far away in Z-direction
     {
-        target.getClass().activate(target,actor).get()->execute(actor); //Arrest player when reached
+        MWBase::Environment::get().getWindowManager()->pushGuiMode(MWGui::GM_Dialogue, actor); //Arrest player when reached
         return true;
     }
 
diff --git a/apps/openmw/mwworld/actionopen.cpp b/apps/openmw/mwworld/actionopen.cpp
index f9866cd41..266ea4d95 100644
--- a/apps/openmw/mwworld/actionopen.cpp
+++ b/apps/openmw/mwworld/actionopen.cpp
@@ -18,6 +18,9 @@ namespace MWWorld
         if (!MWBase::Environment::get().getWindowManager()->isAllowed(MWGui::GW_Inventory))
             return;
 
+        if (actor != MWMechanics::getPlayer())
+            return;
+
         if (!MWBase::Environment::get().getMechanicsManager()->onOpen(getTarget()))
             return;
 
diff --git a/apps/openmw/mwworld/actiontalk.cpp b/apps/openmw/mwworld/actiontalk.cpp
index c7bb6a26e..7fe623b8e 100644
--- a/apps/openmw/mwworld/actiontalk.cpp
+++ b/apps/openmw/mwworld/actiontalk.cpp
@@ -3,12 +3,15 @@
 #include "../mwbase/environment.hpp"
 #include "../mwbase/windowmanager.hpp"
 
+#include "../mwmechanics/actorutil.hpp"
+
 namespace MWWorld
 {
     ActionTalk::ActionTalk (const Ptr& actor) : Action (false, actor) {}
 
     void ActionTalk::executeImp (const Ptr& actor)
     {
-        MWBase::Environment::get().getWindowManager()->pushGuiMode(MWGui::GM_Dialogue, getTarget());
+        if (actor == MWMechanics::getPlayer())
+            MWBase::Environment::get().getWindowManager()->pushGuiMode(MWGui::GM_Dialogue, getTarget());
     }
 }