Skip to main content
← All vulnerabilities
CVE-2026-25047GHSA-2733-6C58-PF27

deepHas vulnerable to Prototype Pollution via constructor.prototype

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.0.7, 1.0.8
1 on Exploit-DB, 1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

deepHas provides a test for the existence of a nested object key and optionally returns that key. A prototype pollution vulnerability exists in version 1.0.7 of the deephas npm package that allows an attacker to modify global object behavior. This issue was fixed in version 1.0.8.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated
  4. Public exploit on Exploit-DB

    EDB-52528

Affected versions

  • sharpred deepHas

    fixed in 1.0.7

  • deephasnpm

    fixed in 1.0.8

References 4

GitHub · sharpred/deepHas

Exploit-DB

GitHub · mbanyamer/deephas-1.0.7-Prototype-Pollution-PoC-CVE-2026-25047-