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webpack-5.66.0.tgz: 6 vulnerabilities (highest severity is: 9.8) #38

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Description

@mend-bolt-for-github
Vulnerable Library - webpack-5.66.0.tgz

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

Library home page: https://registry.npmjs.org/webpack/-/webpack-5.66.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/webpack/package.json

Vulnerabilities

Vulnerability Severity CVSS Dependency Type Fixed in (webpack version) Remediation Possible**
CVE-2023-28154 Critical 9.8 webpack-5.66.0.tgz Direct 5.76.0
CVE-2024-43788 Medium 6.4 webpack-5.66.0.tgz Direct 5.94.0
CVE-2026-34043 Medium 5.9 serialize-javascript-6.0.0.tgz Transitive N/A*
CVE-2024-11831 Medium 5.4 serialize-javascript-6.0.0.tgz Transitive N/A*
CVE-2025-68458 Low 3.7 webpack-5.66.0.tgz Direct 5.104.1
CVE-2025-68157 Low 3.7 webpack-5.66.0.tgz Direct 5.104.0

*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

CVE-2023-28154

Vulnerable Library - webpack-5.66.0.tgz

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

Library home page: https://registry.npmjs.org/webpack/-/webpack-5.66.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/webpack/package.json

Dependency Hierarchy:

  • webpack-5.66.0.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

Webpack 5 before 5.76.0 does not avoid cross-realm object access. ImportParserPlugin.js mishandles the magic comment feature. An attacker who controls a property of an untrusted object can obtain access to the real global object.

Publish Date: 2023-03-13

URL: CVE-2023-28154

CVSS 3 Score Details (9.8)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: High
    • Integrity Impact: High
    • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2023-03-13

Fix Resolution: 5.76.0

Step up your Open Source Security Game with Mend here

CVE-2024-43788

Vulnerable Library - webpack-5.66.0.tgz

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

Library home page: https://registry.npmjs.org/webpack/-/webpack-5.66.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/webpack/package.json

Dependency Hierarchy:

  • webpack-5.66.0.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

Webpack is a module bundler. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset. The webpack developers have discovered a DOM Clobbering vulnerability in Webpack’s "AutoPublicPathRuntimeModule". The DOM Clobbering gadget in the module can lead to cross-site scripting (XSS) in web pages where scriptless attacker-controlled HTML elements (e.g., an "img" tag with an unsanitized "name" attribute) are present. Real-world exploitation of this gadget has been observed in the Canvas LMS which allows a XSS attack to happen through a javascript code compiled by Webpack (the vulnerable part is from Webpack). DOM Clobbering is a type of code-reuse attack where the attacker first embeds a piece of non-script, seemingly benign HTML markups in the webpage (e.g. through a post or comment) and leverages the gadgets (pieces of js code) living in the existing javascript code to transform it into executable code. This vulnerability can lead to cross-site scripting (XSS) on websites that include Webpack-generated files and allow users to inject certain scriptless HTML tags with improperly sanitized name or id attributes. This issue has been addressed in release version 5.94.0. All users are advised to upgrade. There are no known workarounds for this issue.

Publish Date: 2024-08-27

URL: CVE-2024-43788

CVSS 3 Score Details (6.4)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: High
    • Privileges Required: Low
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: Low
    • Integrity Impact: Low
    • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-4vvj-4cpr-p986

Release Date: 2024-08-27

Fix Resolution: 5.94.0

Step up your Open Source Security Game with Mend here

CVE-2026-34043

Vulnerable Library - serialize-javascript-6.0.0.tgz

Serialize JavaScript to a superset of JSON that includes regular expressions and functions.

Library home page: https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/serialize-javascript/package.json

Dependency Hierarchy:

  • webpack-5.66.0.tgz (Root Library)
    • terser-webpack-plugin-5.2.5.tgz
      • serialize-javascript-6.0.0.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted "array-like" object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5.

Publish Date: 2026-03-31

URL: CVE-2026-34043

CVSS 3 Score Details (5.9)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: High
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: None
    • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2026-03-28

Fix Resolution: https://github.com/yahoo/serialize-javascript.git - v7.0.5

Step up your Open Source Security Game with Mend here

CVE-2024-11831

Vulnerable Library - serialize-javascript-6.0.0.tgz

Serialize JavaScript to a superset of JSON that includes regular expressions and functions.

Library home page: https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/serialize-javascript/package.json

Dependency Hierarchy:

  • webpack-5.66.0.tgz (Root Library)
    • terser-webpack-plugin-5.2.5.tgz
      • serialize-javascript-6.0.0.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

A flaw was found in npm-serialize-javascript. The vulnerability occurs because the serialize-javascript module does not properly sanitize certain inputs, such as regex or other JavaScript object types, allowing an attacker to inject malicious code. This code could be executed when deserialized by a web browser, causing Cross-site scripting (XSS) attacks. This issue is critical in environments where serialized data is sent to web clients, potentially compromising the security of the website or web application using this package.

Publish Date: 2025-02-10

URL: CVE-2024-11831

CVSS 3 Score Details (5.4)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: Low
    • User Interaction: Required
    • Scope: Changed
  • Impact Metrics:
    • Confidentiality Impact: Low
    • Integrity Impact: Low
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-76p7-773f-r4q5

Release Date: 2025-02-10

Fix Resolution: serialize-javascript - 6.0.2

Step up your Open Source Security Game with Mend here

CVE-2025-68458

Vulnerable Library - webpack-5.66.0.tgz

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

Library home page: https://registry.npmjs.org/webpack/-/webpack-5.66.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/webpack/package.json

Dependency Hierarchy:

  • webpack-5.66.0.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

Webpack is a module bundler. From version 5.49.0 to before 5.104.1, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) can be bypassed to fetch resources from hosts outside allowedUris by using crafted URLs that include userinfo (username:password@host). If allowedUris enforcement relies on a raw string prefix check (e.g., uri.startsWith(allowed)), a URL that looks allow-listed can pass validation while the actual network request is sent to a different authority/host after URL parsing. This is a policy/allow-list bypass that enables build-time SSRF behavior (outbound requests from the build machine to internal-only endpoints, depending on network access) and untrusted content inclusion (the fetched response is treated as module source and bundled). This issue has been patched in version 5.104.1.

Publish Date: 2026-02-05

URL: CVE-2025-68458

CVSS 3 Score Details (3.7)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: High
    • Privileges Required: Low
    • User Interaction: Required
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: Low
    • Integrity Impact: Low
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://osv.dev/vulnerability/GHSA-8fgc-7cc6-rx7x

Release Date: 2026-02-05

Fix Resolution: 5.104.1

Step up your Open Source Security Game with Mend here

CVE-2025-68157

Vulnerable Library - webpack-5.66.0.tgz

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

Library home page: https://registry.npmjs.org/webpack/-/webpack-5.66.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/webpack/package.json

Dependency Hierarchy:

  • webpack-5.66.0.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

Webpack is a module bundler. From version 5.49.0 to before 5.104.0, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) enforces allowedUris only for the initial URL, but does not re-validate allowedUris after following HTTP 30x redirects. As a result, an import that appears restricted to a trusted allow-list can be redirected to HTTP(S) URLs outside the allow-list. This is a policy/allow-list bypass that enables build-time SSRF behavior (requests from the build machine to internal-only endpoints, depending on network access) and untrusted content inclusion in build outputs (redirected content is treated as module source and bundled). This issue has been patched in version 5.104.0.

Publish Date: 2026-02-05

URL: CVE-2025-68157

CVSS 3 Score Details (3.7)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: High
    • Privileges Required: Low
    • User Interaction: Required
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: Low
    • Integrity Impact: Low
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://osv.dev/vulnerability/GHSA-38r7-794h-5758

Release Date: 2026-02-05

Fix Resolution: 5.104.0

Step up your Open Source Security Game with Mend here

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