PT-2026-132364
CVE-2026-119133
·
Published
2026-10-29
·
Updated
2026-10-29
Description by
CVSS 3.1
2.6
LowMetricsAV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a memory misalignment flaw in VMContext layout that causes undefined behavior when modules contain an odd number of exception tags. A WebAssembly module with an odd tag count misaligns subsequent host fields in embedders with exceptions enabled, although no exploitation path is currently known.
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