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JLSEC-2026-1366 wasmtime-wasi: WASI path_open(TRUNCATE) bypasses `FilePerms::WRITE` host restriction

🗓️ 21 Aug 2026 20:43:33Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 5 Views

wasmtime-wasi TRUNCATE flag bypasses FilePerms::WRITE check in path_open and open_at.

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21 Aug 2026 21:14Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.17.5
EPSS0.00357
5