diff --git a/Zend/tests/fibers/gh10437.phpt b/Zend/tests/fibers/gh10437.phpt
new file mode 100644
index 00000000000..5c793c986ee
--- /dev/null
+++ b/Zend/tests/fibers/gh10437.phpt
@@ -0,0 +1,18 @@
+--TEST--
+GH-10437 (Segfault/assertion when using fibers in shutdown function after bailout)
+--FILE--
+<?php
+
+register_shutdown_function(function (): void {
+    var_dump(Fiber::getCurrent());
+});
+
+$fiber = new Fiber(function (): never {
+    trigger_error('Bailout in fiber', E_USER_ERROR);
+});
+$fiber->start();
+
+?>
+--EXPECTF--
+Fatal error: Bailout in fiber in %sgh10437.php on line %d
+NULL
diff --git a/Zend/zend_fibers.c b/Zend/zend_fibers.c
index 50c7ef9635f..5edefdb8052 100644
--- a/Zend/zend_fibers.c
+++ b/Zend/zend_fibers.c
@@ -645,6 +645,7 @@ static zend_always_inline zend_fiber_transfer zend_fiber_switch_to(
 
 	/* Forward bailout into current fiber. */
 	if (UNEXPECTED(transfer.flags & ZEND_FIBER_TRANSFER_FLAG_BAILOUT)) {
+		EG(active_fiber) = NULL;
 		zend_bailout();
 	}