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CVE-2025-66456

🗓️ 09 Dec 2025 19:43:10Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 2 Media mentions👁 32 Views

Elysia prototype pollution in mergeDeep (1.4.0–1.4.16) enables RCE; fix 1.4.17; remove __proto__.

Related
Detection
Affected
Refs
Social
NVD
Vulners
Node
elysiajselysiaRange1.4.01.4.17node.js
[
  {
    "vendor": "elysiajs",
    "product": "elysia",
    "versions": [
      {
        "version": ">= 1.4.0, < 1.4.17",
        "status": "affected"
      }
    ]
  }
]

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17 Jun 2026 09:56Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.19.8
CVSS 49.1
EPSS0.00473
SSVC
32