Access of Resource Using Incompatible Type ('Type Confusion') Affecting v8/v8 package, versions [,14.4.31-pgo)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-V8V8-14176140
- published4 Dec 2025
- disclosed2 Dec 2025
- creditShreyas Penkar
Introduced: 2 Dec 2025
CVE-2025-13630 (opens in a new tab)How to fix?
Upgrade v8/v8 to version 14.4.31-pgo or higher.
Overview
Affected versions of this package are vulnerable to Access of Resource Using Incompatible Type ('Type Confusion') due to incorrect receiver handling in the maglev optimization of array.prototype.slice. An attacker can exploit this mismatch to trigger type confusion during optimized execution, potentially causing memory corruption, out-of-bounds access, or other undefined behavior