diff --git a/src/main/java/baritone/Settings.java b/src/main/java/baritone/Settings.java
index bfab655e..c2a618b9 100644
--- a/src/main/java/baritone/Settings.java
+++ b/src/main/java/baritone/Settings.java
@@ -144,6 +144,12 @@ public class Settings {
      */
     public Setting<Boolean> cutoffAtLoadBoundary = new Setting<>(false);
 
+    /**
+     * If a movement's cost increases by more than this amount between calculation and execution (due to changes
+     * in the environment / world), cancel and recalculate
+     */
+    public Setting<Double> maxCostIncrease = new Setting<>(10D);
+
     /**
      * Stop 5 movements before anything that made the path COST_INF.
      * For example, if lava has spread across the path, don't walk right up to it then recalculate, it might
diff --git a/src/main/java/baritone/pathing/path/PathExecutor.java b/src/main/java/baritone/pathing/path/PathExecutor.java
index e59d9aa7..93e12e09 100644
--- a/src/main/java/baritone/pathing/path/PathExecutor.java
+++ b/src/main/java/baritone/pathing/path/PathExecutor.java
@@ -236,6 +236,13 @@ public class PathExecutor implements Helper {
             Baritone.INSTANCE.getInputOverrideHandler().clearAllKeys();
             return true;
         }
+        if (currentCost - currentMovementInitialCostEstimate > Baritone.settings().maxCostIncrease.get()) {
+            logDebug("Original cost " + currentMovementInitialCostEstimate + " current cost " + currentCost + ". Cancelling.");
+            pathPosition = path.length() + 3;
+            failed = true;
+            Baritone.INSTANCE.getInputOverrideHandler().clearAllKeys();
+            return true;
+        }
         player().capabilities.allowFlying = false;
         MovementState.MovementStatus movementStatus = movement.update();
         if (movementStatus == UNREACHABLE || movementStatus == FAILED) {