chore(deps): update dependency storybook to v9.1.19 [security] - autoclosed

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
storybook (source)	9.0.17 → 9.1.19

GitHub Vulnerability Alerts

CVE-2026-27148

Summary

The WebSocket functionality in Storybook's dev server, used to create and update stories, is vulnerable to WebSocket hijacking. This vulnerability only affects the Storybook dev server; production builds are not impacted.

Details

Exploitation requires a developer to visit a malicious website while their local Storybook dev server is running. Because the WebSocket connection does not validate the origin of incoming connections, a malicious site can silently send WebSocket messages to the local instance without any further user interaction.

If a Storybook dev server is intentionally exposed publicly (e.g. for design reviews or stakeholder demos) the risk is higher, as no malicious site visit is required. Any unauthenticated attacker can send WebSocket messages to it directly.

The vulnerability affects the WebSocket message handlers for creating and saving stories, which can be exploited via unauthorized WebSocket connections to achieve persistent XSS or Remote Code Execution (RCE).

Note: recent versions of Chrome have some protections against this, but Firefox does not.

Impact

This vulnerability can lead to supply chain compromise. Key risks include:

• Remote Code Execution: The vulnerability can allow attackers to execute malicious code, with the extent of impact depending on the configuration. Server-side RCE is possible in non-default configurations, such as when stories are executed via portable stories in JSDOM, potentially allowing attackers to exfiltrate credentials and environment variables, access source code and the filesystem, establish backdoors, or pivot to internal network resources.
• Persistent XSS: Malicious payloads are written directly into story source files. If the malicious payload is committed to version control, it becomes part of the codebase and can propagate to deployed Storybook documentation sites, affecting developers and stakeholders who view them.
• Supply Chain Propagation: If the modified source files are committed, injected code can spread to other team members via git, execute in CI/CD pipelines, and affect shared component libraries used across multiple projects.

Affected versions

8.1 and above. While the exploitable functionality was introduced in 8.1, the patch has been applied to 7.x as a precautionary measure given the underlying WebSocket behaviour.

Recommended actions

Update to one of the patched versions: 7.6.23, 8.6.17, 9.1.19, 10.2.10.

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Release Notes

storybookjs/storybook (storybook)

v9.1.19

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9.1.19

• Harden websocket connection

v9.1.18

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9.1.18

• No-op release. No changes.

v9.1.17

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v9.1.16

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v9.1.15

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• Core: Add preview-first-load telemetry - #​32770, thanks @​shilman!
• Dependencies: Update vite-plugin-storybook-nextjs - #​32821, thanks @​ndelangen!

v9.1.14

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• NextJS: Add NextJS 16 support - #​32791, thanks @​yannbf and @​ndelangen!
• Addon-Vitest: Support Vitest 4 - #​32819, thanks @​yannbf and @​ndelangen!
• CSF: Fix play-fn tag for methods - #​32695, thanks @​shilman!

v9.1.13

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v9.1.12

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• Maintenance: Hotfix for missing nextjs dts files, thanks @​ndelangen!

v9.1.11

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• Automigration: Improve the viewport/backgrounds automigration - #​32619, thanks @​valentinpalkovic!
• Mocking: Fix sb.mock usage in Storybook's deployed in subpaths - #​32678, thanks @​valentinpalkovic!
• NextJS-Vite: Automatically fix bad PostCSS configuration - #​32691, thanks @​ndelangen!
• React Native Web: Fix REACT_NATIVE_AND_RNW should detect vite builder - #​32718, thanks @​dannyhw!
• Telemetry: Add metadata for react routers - #​32615, thanks @​shilman!

v9.1.10

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• Automigrations: Add automigration for viewport and backgrounds - #​31614, thanks @​valentinpalkovic!
• Telemetry: Log userAgent in onboarding - #​32566, thanks @​shilman!

v9.1.9

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• Angular: Enable experimental zoneless detection on Angular v21 - #​32580, thanks @​yannbf!
• Svelte: Ignore inherited HTMLAttributes docgen when using utility types - #​32173, thanks @​steciuk!

v9.1.8

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• PreactVite: Add node entry point - #​32534, thanks @​ndelangen!

v9.1.7

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• Dependencies: Update vite-plugin-storybook-nextjs to 2.0.7 - #​32331, thanks @​k35o!
• React: Preserve @ts-expect-error in preview - #​32442, thanks @​mrginglymus!
• Telemetry: Queue error reporting & filter browser-extention - #​32499, thanks @​ndelangen!

v9.1.6

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• CLI: Capture the version specifier used in create-storybook - #​32344, thanks @​shilman!
• Instrumenter: Fix userEvent.type performance regression - #​32439, thanks @​ndelangen!
• React Native Web: Fix RNW peer dependency version - #​32438, thanks @​dannyhw!
• Telemetry: Record known CLI integrations - #​32448, thanks @​shilman!

v9.1.5

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• CSF: Support satisfies x as y syntax - #​32169, thanks @​diagramatics!
• Vitest addon: Handle Playwright installation errors gracefully - #​32329, thanks @​ndelangen!

v9.1.4

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• Angular: Properly merge builder options and browserTarget options - #​32272, thanks @​kroeder!
• Core: Optimize bundlesize, by reusing internal/babel in mocking-utils - #​32350, thanks @​ndelangen!
• Svelte & Vue: Add framework-specific docgen option to disable docgen processing - #​32319, thanks @​copilot-swe-agent!
• Svelte: Support @sveltejs/vite-plugin-svelte v6 - #​32320, thanks @​JReinhold!

v9.1.3

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• Docs: Move button in ArgsTable heading to fix screenreader announcements - #​32238, thanks @​Sidnioulz!
• Mock: Catch errors when transforming preview files - #​32216, thanks @​valentinpalkovic!
• Next.js: Fix version mismatch error in Webpack - #​32306, thanks @​valentinpalkovic!
• Telemetry: Disambiguate traffic coming from error/upgrade links - #​32287, thanks @​shilman!
• Telemetry: Disambiguate unattributed traffic from Onboarding - #​32286, thanks @​shilman!

v9.1.2

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• Addon Docs: Fix Symbol conversion issue in docs page and controls panel - #​32220, thanks @​yannbf!
• Angular: Fix entry.polyfills undefined error - #​32230, thanks @​sk-pub!
• Angular: Inherit options from browserTarget - #​32108, thanks @​gingeekrishna!
• Core: Improve addon detection in automigrations on windows - #​31937, thanks @​mrginglymus!
• Next.js: Return mocked router instead of actual router in useRouter - #​32131, thanks @​JulioJ11!
• Telemetry: Improve dev cancellation handling - #​32218, thanks @​shilman!

v9.1.1

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• Maintenance: Hotfix for missing nextjs dts files, thanks @​ndelangen!

v9.1.0

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Storybook 9.1 is packed with new features and improvements to enhance accessibility, streamline testing, and make your development workflow even smoother!

🚀 Improved upgrade command with monorepo support for seamless upgrades
🅰 Angular fixes for Tailwind 4, cache busting, and zoneless compatibility
🧪 sb.mock API and Automocking: one-line module mocking to simplify your testing workflow
🧪 Favicon shows test run status for quick visual feedback
⚛️ Easier configuration for React Native projects
🔥 Auto-abort play functions on HMR to avoid unwanted side effects
🏗️ Improved CSF factories API for type safe story definitions
♿️ A11y improvements across Storybook’s UI — addon panel, toolbar, sidebar, mobile & more
💯 Dozens more fixes and improvements based on community feedback!

List of all updates

• A11y: Improved toolbar a11y by fixing semantics - #​28672, thanks @​mehm8128!
• Addon Vitest: Remove Optimize deps candidates due to Vitest warnings - #​31809, thanks @​valentinpalkovic!
• Angular: Bundle using TSup - #​31690, thanks @​ndelangen!
• Angular: Prevent directory import in Angular builders - #​32012, thanks @​ghengeveld!
• Automigration: Await updateMainConfig in removeEssentials - #​32140, thanks @​valentinpalkovic!
• Builder-Vite: Fix logic related to setting allowedHosts when IP address used - #​31472, thanks @​JSMike!
• Controls: Improve the accessibility of the object control - #​31581, thanks @​Sidnioulz!
• Core: Abort play function on HMR - #​31542, thanks @​ghengeveld!
• Core: Avoid pausing animations in non-Vitest Playwright environments - #​32123, thanks @​ghengeveld!
• Core: Cleanup of type following up v9 and small verbatimModuleSyntax type fix - #​31823, thanks @​alcpereira!
• Core: Fix aria-controls attribute on sidebar nodes to include all children - #​31491, thanks @​candrepa1!
• Core: Fix horizontal scrollbar covering part of the toolbar - #​31704, thanks @​Sidnioulz!
• Core: Fix moving log file across drives and projectRoot detection on Windows - #​32020, thanks @​ghengeveld!
• Core: Prevent interactions panel from flickering and showing incorrect state - #​32150, thanks @​ghengeveld!
• Core: Serve dynamic favicon based on testing module status - #​31763, thanks @​ghengeveld!
• Core: Support container queries in addon panels - #​23261, thanks @​neil-morrison44!
• CSF Factories: Add parameters/globals types, extend API, portable stories - #​30601, thanks @​kasperpeulen!
• CSF: Improve controls parameters - #​31745, thanks @​kasperpeulen!
• CSF: Improve docs parameter types - #​31736, thanks @​kasperpeulen!
• CSF: Only add preview annotations to definePreview in csf-factories automigration - #​31727, thanks @​kasperpeulen!
• Docs: Update @​storybook/icons - #​32144, thanks @​valentinpalkovic!
• Docs: Update react-element-to-jsx-string - #​31170, thanks @​7rulnik!
• Init: Exclude mdx stories when docs feature isn't selected during init - #​32142, thanks @​valentinpalkovic!
• Maintenance: Add flag to toggle default automigrations - #​32113, thanks @​yannbf!
• React Native Web: Simplify config by using vite-plugin-rnw - #​32051, thanks @​dannyhw!
• Telemetry: Add automigration errors - #​32103, thanks @​yannbf!
• Telemetry: Fix project.json for getAbsolutePath - #​31510, thanks @​ndelangen!
• Test: Add mock capabilities - #​31987, thanks @​valentinpalkovic!
• Test: Consider exports map - #​32157, thanks @​valentinpalkovic!
• Test: Fix missing source map for Webpack/Vite mock loaders and plugins - #​32111, thanks @​valentinpalkovic!
• Test: Invalidate vite cache for manual mocks - #​32152, thanks @​valentinpalkovic!
• Test: Remove source map generation from webpack automock-loader - #​32115, thanks @​valentinpalkovic!
• UI: Apply user updates for mobile navigation accessibility - #​31401, thanks @​yatishgoel!
• UI: Fix interaction step collapse icon - #​31853, thanks @​AvitalHass!
• UI: Visual focus indicators (VFIs) aren't visible in high contrast mode (rebase) - #​31848, thanks @​Sidnioulz!

v9.0.18

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• CLI: Fix Storybook doctor compatibility checks - #​32077, thanks @​yannbf!
• Svelte: Fix union types generating invalid labels in argTypes - #​31980, thanks @​grantralls!
• Telemetry: Add nodeLinker to telemetry - #​32072, thanks @​valentinpalkovic!

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Configuration

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🚦 Automerge: Enabled.

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