diff --git a/.changeset/2026-08-18-youtube-live-urls.md b/.changeset/2026-08-18-youtube-live-urls.md
new file mode 100644
index 0000000000..5d696668f0
--- /dev/null
+++ b/.changeset/2026-08-18-youtube-live-urls.md
@@ -0,0 +1,5 @@
+---
+'@tiptap/extension-youtube': patch
+---
+
+YouTube live URLs (`/live/<id>`) now embed the video.
diff --git a/.changeset/fix-react-node-view-renderer.md b/.changeset/fix-react-node-view-renderer.md
new file mode 100644
index 0000000000..9f2ae627fb
--- /dev/null
+++ b/.changeset/fix-react-node-view-renderer.md
@@ -0,0 +1,5 @@
+---
+"@tiptap/react": patch
+---
+
+Fix ReactNodeViewRenderer crash when contentComponent is not available
diff --git a/packages/extension-youtube/__tests__/youtube.spec.ts b/packages/extension-youtube/__tests__/youtube.spec.ts
index ab050cbdc9..ac3bec9b60 100644
--- a/packages/extension-youtube/__tests__/youtube.spec.ts
+++ b/packages/extension-youtube/__tests__/youtube.spec.ts
@@ -80,6 +80,72 @@ describe('extension-youtube', () => {
     getEditorEl()?.remove()
   })
 
+  describe('YouTube Live URL handling', () => {
+    it('generates correct embed URL for a YouTube Live URL', () => {
+      const result = getEmbedUrlFromYoutubeUrl({
+        url: 'https://www.youtube.com/live/EkRHhOCdZjw',
+        controls: true,
+      })
+
+      expect(result).toBe('https://www.youtube.com/embed/EkRHhOCdZjw')
+    })
+
+    it('generates correct embed URL for a YouTube Live URL without www prefix', () => {
+      const result = getEmbedUrlFromYoutubeUrl({
+        url: 'https://youtube.com/live/EkRHhOCdZjw',
+        controls: true,
+        autoplay: true,
+      })
+
+      expect(result).toBe('https://www.youtube.com/embed/EkRHhOCdZjw?autoplay=1')
+    })
+
+    it('generates correct embed URL for a YouTube Live URL with multiple parameters', () => {
+      const result = getEmbedUrlFromYoutubeUrl({
+        url: 'https://www.youtube.com/live/EkRHhOCdZjw',
+        autoplay: true,
+        controls: false,
+        rel: 0,
+      })
+
+      expect(result).toBe('https://www.youtube.com/embed/EkRHhOCdZjw?autoplay=1&controls=0&rel=0')
+    })
+
+    it('generates correct embed URL for a YouTube Live URL with nocookie option', () => {
+      const result = getEmbedUrlFromYoutubeUrl({
+        url: 'https://www.youtube.com/live/EkRHhOCdZjw',
+        nocookie: true,
+        controls: true,
+        rel: 1,
+      })
+
+      expect(result).toBe('https://www.youtube-nocookie.com/embed/EkRHhOCdZjw?rel=1')
+    })
+
+    it('keeps a live URL with a query string on the video id', () => {
+      const result = getEmbedUrlFromYoutubeUrl({
+        url: 'https://www.youtube.com/live/EkRHhOCdZjw?feature=share',
+        controls: true,
+      })
+
+      expect(result).toBe('https://www.youtube.com/embed/EkRHhOCdZjw')
+    })
+  })
+
+  describe('YouTube path-like near misses', () => {
+    const nearMisses = [
+      'https://www.youtube.com/notlive/EkRHhOCdZjw',
+      'https://www.youtube.com/notshorts/EkRHhOCdZjw',
+      'https://www.youtube.com/watch?redirect=live/EkRHhOCdZjw',
+    ]
+
+    nearMisses.forEach(url => {
+      it(`does not embed a video id for ${url}`, () => {
+        expect(getEmbedUrlFromYoutubeUrl({ url, controls: true })).toBe(null)
+      })
+    })
+  })
+
   describe('YouTube Shorts URL handling', () => {
     it('generates correct embed URL for YouTube Shorts with rel parameter', () => {
       const result = getEmbedUrlFromYoutubeUrl({
diff --git a/packages/extension-youtube/src/utils.ts b/packages/extension-youtube/src/utils.ts
index af60a04545..436ab33f47 100644
--- a/packages/extension-youtube/src/utils.ts
+++ b/packages/extension-youtube/src/utils.ts
@@ -83,7 +83,7 @@ export const getEmbedUrlFromYoutubeUrl = (options: GetEmbedUrlOptions) => {
     return `${getYoutubeEmbedUrl(nocookie)}${id}`
   }
 
-  const videoIdRegex = /(?:(v|list)=|shorts\/)([-\w]+)/gm
+  const videoIdRegex = /(?:(v|list)=|\/(?:shorts|live)\/)([-\w]+)/gm
   const matches = videoIdRegex.exec(url)
 
   if (!matches || !matches[2]) {
diff --git a/packages/react/src/ReactNodeViewRenderer.spec.ts b/packages/react/src/ReactNodeViewRenderer.spec.ts
index 22fdfb9aa9..bda154c193 100644
--- a/packages/react/src/ReactNodeViewRenderer.spec.ts
+++ b/packages/react/src/ReactNodeViewRenderer.spec.ts
@@ -1,5 +1,7 @@
 import { act, render } from '@testing-library/react'
 import { Editor, Node } from '@tiptap/core'
+import type { NodeViewRendererProps } from '@tiptap/core'
+import type { NodeView as ProseMirrorNodeView } from '@tiptap/pm/view'
 import Document from '@tiptap/extension-document'
 import Paragraph from '@tiptap/extension-paragraph'
 import Text from '@tiptap/extension-text'
@@ -213,6 +215,34 @@ describe('ReactNodeViewRenderer', () => {
     document.body.innerHTML = ''
   })
 
+  it('returns a valid fallback node view before EditorContent initializes', () => {
+    let fallbackNodeView: ProseMirrorNodeView | undefined
+    const FallbackParagraph = Paragraph.extend({
+      addNodeView() {
+        const renderNodeView = ReactNodeViewRenderer(ReactParagraphComponent)
+
+        return (props: NodeViewRendererProps) => {
+          fallbackNodeView = renderNodeView(props)
+
+          return fallbackNodeView
+        }
+      },
+    })
+    let editor: Editor | undefined
+
+    expect(() => {
+      editor = new Editor({
+        extensions: [Document, FallbackParagraph, Text],
+        content: '<p>Hello</p>',
+      })
+    }).not.toThrow()
+
+    expect(fallbackNodeView?.dom).toBeInstanceOf(HTMLElement)
+    expect(fallbackNodeView?.contentDOM).toBeNull()
+    expect((fallbackNodeView?.update as (() => boolean) | undefined)?.()).toBe(false)
+    expect(() => editor?.destroy()).not.toThrow()
+  })
+
   it('renders nested node views and resolves getPos during render', async () => {
     const editor = createEditorWithContainers()
     const { container } = render(React.createElement(EditorContent, { editor }))
diff --git a/packages/react/src/ReactNodeViewRenderer.tsx b/packages/react/src/ReactNodeViewRenderer.tsx
index da7ebd3cc7..67e63da1a1 100644
--- a/packages/react/src/ReactNodeViewRenderer.tsx
+++ b/packages/react/src/ReactNodeViewRenderer.tsx
@@ -467,9 +467,21 @@ export function ReactNodeViewRenderer<T = HTMLElement>(
   return props => {
     // try to get the parent component
     // this is important for vue devtools to show the component hierarchy correctly
-    // maybe it’s `undefined` because <editor-content> isn’t rendered yet
+    // maybe it's `undefined` because <editor-content> isn't rendered yet
     if (!(props.editor as EditorWithContentComponent).contentComponent) {
-      return {} as unknown as ProseMirrorNodeView
+      // Return a minimal valid NodeView with a placeholder DOM element
+      // to prevent ProseMirror from crashing when calling hasAttribute on undefined
+      const placeholder = document.createElement('span')
+      return {
+        dom: placeholder,
+        contentDOM: null,
+        update: () => false,
+        destroy: () => {},
+        selectNode: () => {},
+        deselectNode: () => {},
+        stopEvent: () => false,
+        ignoreMutation: () => true,
+      } as unknown as ProseMirrorNodeView
     }
 
     return new ReactNodeView<T>(component, props, options)