by Kastro
Paper/Archive/CVE-2026-25047

CVE-2026-25047

sharpred deepHas — deepHas vulnerable to Prototype Pollution via constructor.prototype

EPSS 0.8%CVSS 9.4
critical.is priorityof 100
40
CVSS 9.4 (CNA)9.4 / 10 × 3028.2Not in CISA KEV+300.0EPSS percentile 56.5.565 × 2011.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
deepHas< 1.0.7–CNA

Scores by source

GitHub_M (CNA)9.4CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/sharpred/deepHas/security/advisories/GHSA-2733-6c58-pf27refgithub.com/sharpred/deepHas/commit/8097fafd3776c613d8066546653e0d2c7b5fc465