Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| sharpred | deepHas | < 1.0.7 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- deephas 1.0.7 - Prototype Pollution EDB-52528 · webapps · Apr 30, 2026
GitHub 1 repository
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mbanyamer/deephas-1.0.7-Prototype-Pollution-PoC-CVE-2026-25047- ★ 0 · Jan 31, 2026
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | deephas | < 1.0.8 | 1.0.8 | GHSA-2733-6c58-pf27 |