js-yaml-3.13.0.tgz: 2 vulnerabilities (highest severity is: 8.1)

[mend-for-github-com]

Vulnerable Library - js-yaml-3.13.0.tgz

YAML 1.2 parser and serializer

Library home page: https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/js-yaml/package.json

Found in HEAD commit: 185069a9af406ebbf266a8f7ff196d415e54744f

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (js-yaml version)	Remediation Possible**
WS-2019-0063	High	8.1	js-yaml-3.13.0.tgz	Direct	3.13.1	✅
CVE-2025-64718	Medium	5.3	js-yaml-3.13.0.tgz	Direct	4.1.1	✅

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

Details

WS-2019-0063

Vulnerable Library - js-yaml-3.13.0.tgz

YAML 1.2 parser and serializer

Library home page: https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/js-yaml/package.json

Dependency Hierarchy:

• ❌ js-yaml-3.13.0.tgz (Vulnerable Library)

Found in HEAD commit: 185069a9af406ebbf266a8f7ff196d415e54744f

Found in base branch: master

Vulnerability Details

Js-yaml prior to 3.13.1 are vulnerable to Code Injection. The load() function may execute arbitrary code injected through a malicious YAML file.

Publish Date: 2019-04-05

URL: WS-2019-0063

CVSS 3 Score Details (8.1)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: High
  • 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

Origin: https://www.npmjs.com/advisories/813

Release Date: 2019-04-05

Fix Resolution: 3.13.1

⛑️ Automatic Remediation will be attempted for this issue.

CVE-2025-64718

Vulnerable Library - js-yaml-3.13.0.tgz

YAML 1.2 parser and serializer

Library home page: https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/js-yaml/package.json

Dependency Hierarchy:

• ❌ js-yaml-3.13.0.tgz (Vulnerable Library)

Found in HEAD commit: 185069a9af406ebbf266a8f7ff196d415e54744f

Found in base branch: master

Vulnerability Details

js-yaml is a JavaScript YAML parser and dumper. In js-yaml 4.1.0 and below, it's possible for an attacker to modify the prototype of the result of a parsed yaml document via prototype pollution ("proto"). All users who parse untrusted yaml documents may be impacted. The problem is patched in js-yaml 4.1.1. Users can protect against this kind of attack on the server by using "node --disable-proto=delete" or "deno" (in Deno, pollution protection is on by default).

Publish Date: 2025-11-13

URL: CVE-2025-64718

CVSS 3 Score Details (5.3)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-mh29-5h37-fv8m

Release Date: 2025-11-13

Fix Resolution: 4.1.1

⛑️ Automatic Remediation will be attempted for this issue.

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⛑️Automatic Remediation will be attempted for this issue.