core-11.1.9.tgz: 2 vulnerabilities (highest severity is: 7.5)

[mend-bolt-for-github]

Vulnerable Library - core-11.1.9.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (core version)	Remediation Possible**
CVE-2026-4926	High	7.5	path-to-regexp-8.3.0.tgz	Transitive	N/A*	❌
CVE-2026-4923	Medium	5.9	path-to-regexp-8.3.0.tgz	Transitive	N/A*	❌

*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-2026-4926

Vulnerable Library - path-to-regexp-8.3.0.tgz

Express style path to RegExp utility

Library home page: https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.3.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Dependency Hierarchy:

• core-11.1.9.tgz (Root Library)
  • ❌ path-to-regexp-8.3.0.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

Impact:A bad regular expression is generated any time you have multiple sequential optional groups (curly brace syntax), such as "{a}{b}{c}:z". The generated regex grows exponentially with the number of groups, causing denial of service.Patches:Fixed in version 8.4.0.Workarounds:Limit the number of sequential optional groups in route patterns. Avoid passing user-controlled input as route patterns.

Publish Date: 2026-03-26

URL: CVE-2026-4926

CVSS 3 Score Details (7.5)

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: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-j3q9-mxjg-w52f

Release Date: 2026-03-26

Fix Resolution: path-to-regexp - 8.4.0

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CVE-2026-4923

Vulnerable Library - path-to-regexp-8.3.0.tgz

Express style path to RegExp utility

Library home page: https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.3.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Dependency Hierarchy:

• core-11.1.9.tgz (Root Library)
  • ❌ path-to-regexp-8.3.0.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

Impact:
When using multiple wildcards, combined with at least one parameter, a regular expression can be generated that is vulnerable to ReDoS. This backtracking vulnerability requires the second wildcard to be somewhere other than the end of the path.
Unsafe examples:
/*foo-*bar-:baz
/*a-:b-*c-:d
/x/*a-:b/*c/y
Safe examples:
/*foo-:bar
/*foo-:bar-*baz
Patches:
Upgrade to version 8.4.0.
Workarounds:
If you are using multiple wildcard parameters, you can check the regex output with a tool such as https://makenowjust-labs.github.io/recheck/playground/ to confirm whether a path is vulnerable.

Publish Date: 2026-03-26

URL: CVE-2026-4923

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

Origin: GHSA-27v5-c462-wpq7

Release Date: 2026-03-26

Fix Resolution: path-to-regexp - 8.4.0

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