serialize-javascript-5.0.1.tgz: 2 vulnerabilities (highest severity is: 5.9) unreachable

[mend-for-github-com]

Vulnerable Library - serialize-javascript-5.0.1.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-5.0.1.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Found in HEAD commit: 1e5781423c543a0c9bfedb4c5a57ca049920974b

Vulnerabilities

Vulnerability	Severity	CVSS	Exploit Maturity	EPSS	Dependency	Type	Fixed in (serialize-javascript version)	Remediation Possible**	Reachability
CVE-2026-34043	Medium	5.9	Not Defined	0.017%	serialize-javascript-5.0.1.tgz	Direct	https://github.com/yahoo/serialize-javascript.git - v7.0.5	✅	Unreachable
CVE-2024-11831	Medium	5.4	Not Defined	1.129%	serialize-javascript-5.0.1.tgz	Direct	serialize-javascript - 6.0.2	✅	Unreachable

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

Details

CVE-2026-34043

Vulnerable Library - serialize-javascript-5.0.1.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-5.0.1.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Dependency Hierarchy:

• ❌ serialize-javascript-5.0.1.tgz (Vulnerable Library)

Found in HEAD commit: 1e5781423c543a0c9bfedb4c5a57ca049920974b

Found in base branch: main

Reachability Analysis

The vulnerable code is unreachable

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

Threat Assessment

Exploit Maturity: Not Defined

EPSS: 0.017%

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

⛑️ Automatic Remediation will be attempted for this issue.

CVE-2024-11831

Vulnerable Library - serialize-javascript-5.0.1.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-5.0.1.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Dependency Hierarchy:

• ❌ serialize-javascript-5.0.1.tgz (Vulnerable Library)

Found in HEAD commit: 1e5781423c543a0c9bfedb4c5a57ca049920974b

Found in base branch: main

Reachability Analysis

The vulnerable code is unreachable

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

Threat Assessment

Exploit Maturity: Not Defined

EPSS: 1.129%

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

⛑️ Automatic Remediation will be attempted for this issue.

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⛑️Automatic Remediation will be attempted for this issue.