diff --git a/backends/imgui_impl_vulkan.cpp b/backends/imgui_impl_vulkan.cpp
index 570b914c0..857e35820 100644
--- a/backends/imgui_impl_vulkan.cpp
+++ b/backends/imgui_impl_vulkan.cpp
@@ -29,6 +29,7 @@
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
 //  2026-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2026-07-15: [Docking] Vulkan: fixed use-after-free when using multi-viewport with dynamic rendering path: deep-copy SurfaceFormat.format into the persistent buffer instead of storing a pointer to the viewport's wd->SurfaceFormat which dangles after the viewport is destroyed. (#9390, #9468)
 //  2026-04-23: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. (#9378)
 //  2026-04-22: *BREAKING CHANGE* redesigned to use separate ImageView + Sampler instead of Combined Image Sampler. This change allows us to facilitate changing samplers, in line with other backends.
 //              - When registering custom textures: changed ImGui_ImplVulkan_AddTexture() signature to remove Sampler.
@@ -2127,7 +2128,9 @@ static void ImGui_ImplVulkan_CreateWindow(ImGuiViewport* viewport)
         {
             pipeline_info->PipelineRenderingCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO;
             pipeline_info->PipelineRenderingCreateInfo.colorAttachmentCount = 1;
-            pipeline_info->PipelineRenderingCreateInfo.pColorAttachmentFormats = &wd->SurfaceFormat.format;
+            bd->PipelineRenderingCreateInfoColorAttachmentFormats.resize(1);
+            bd->PipelineRenderingCreateInfoColorAttachmentFormats[0] = wd->SurfaceFormat.format;
+            pipeline_info->PipelineRenderingCreateInfo.pColorAttachmentFormats = bd->PipelineRenderingCreateInfoColorAttachmentFormats.Data;
         }
         else
         {
diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index 758276d98..41cbc3a0f 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -180,6 +180,8 @@ Docking+Viewports Branch:
     change when docked. (#9355, #9443) [@reybits]
 - Backends:
   - Metal4: added multi-viewport support. (#9465, #9451) [@hoffstadt]
+  - Vulkan: fixed use after-free when using multi-viewports with dynamic rendering.
+    (#9390, #9468) [@vikhik, @Turtle-PB]
 
 
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