Advisory Database
  • Advisories
  • Dependency Scanning
  1. npm
  2. ›
  3. jsonpointer
  4. ›
  5. CVE-2021-23807

CVE-2021-23807: Prototype Pollution in node-jsonpointer

November 8, 2021 (updated March 5, 2025)

This affects the package jsonpointer before 5.0.0. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix when the pointer components are arrays.

References

  • github.com/advisories/GHSA-282f-qqgm-c34q
  • github.com/janl/node-jsonpointer
  • github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4
  • github.com/janl/node-jsonpointer/pull/51
  • nvd.nist.gov/vuln/detail/CVE-2021-23807
  • snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273
  • snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288

Code Behaviors & Features

Detect and mitigate CVE-2021-23807 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 5.0.0

Fixed versions

  • 5.0.0

Solution

Upgrade to version 5.0.0 or above.

Impact 5.6 MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Learn more about CVSS

Weakness

  • CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
  • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

Source file

npm/jsonpointer/CVE-2021-23807.yml

Spotted a mistake? Edit the file on GitLab.

  • Site Repo
  • About GitLab
  • Terms
  • Privacy Statement
  • Contact

Page generated Sun, 08 Nov 2026 00:15:18 +0000.