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GHSA-VC8C-J3XM-XJ73 Wasmtime segfault or unused out-of-sandbox load with f64.copysign operator on x86-64

🗓️ 27 Jan 2026 00:48:20Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 6 Views

Wasmtime AVX f64.copysign may load 16 bytes from memory, risking segfault or out-of-bounds data.

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04 Feb 2026 03:20Current
5.9Medium risk
Vulners AI Score5.9
CVSS 44.1
EPSS0.00214
6