Critical 9.4Published Jan 29, 2026

CVE-2026-25047deepHas vulnerable to Prototype Pollution via constructor.prototype

Updated under an hour ago (Oct 28, 2026, 9:10 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for sharpred deepHas

Exploited in the last 30 days

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.

CVSS: 9.4 CRITICAL (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Weakness (CWE): CWE-1321
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Feb 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

sharpred deepHas sharpred:deephas (from the name)	before 1.0.7	CNA record
sharpred deephas sharpred:deephas	1.0.7	NVD

References

References

https://github.com/sharpred/deepHas/security/advisories/GHSA-2733-6c58-pf27	x-refsource-confirm, exploit, vendor-advisory
https://github.com/sharpred/deepHas/commit/8097fafd3776c613d8066546653e0d2c7b5fc465	x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.