Threats Tagged 'cve-2025-66456'
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Threats Tagged 'cve-2025-66456'
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0 CVE-2025-66456 is a critical prototype pollution vulnerability in the Elysia Typescript framework versions 1.4.0 through 1.4.16. It arises from improper merging of schema validation results in the mergeDeep function, allowing an attacker to manipulate the __proto__ property. When combined with another vulnerability (GHSA-8vch-m3f4-q8jf), this can lead to full remote code execution (RCE) without authentication or user interaction. The vulnerability has a CVSS 4.0 score of 9.1, indicating high severity. Join the discussion | CVE Database V5 | 12/09/2025, 19:43:10 UTC Added: 12/09/2025, 19:52:34 UTC |
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