Wasmtime CVE-2026-115889 (CVSS 9.9) lets crafted WebAssembly escape the sandbox · Jadid

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Saturday, October 24, 2026 · 2 of 5

Wasmtime CVE-2026-115889 (CVSS 9.9) lets crafted WebAssembly escape the sandbox
Fixed in v43.
Oct 23Security

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