RUSTSEC-2026-0378None▾ SunlitPanic lowering a host-created component model stream into a guest that expects a different payload type
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-9pvw-hwfg-92h5 For more information see the GitHub-hosted security advisory.
wasmtime >= 49.0.0, < 49.0.4Upgrade to a patched release:
wasmtime 49.0.4Connected by shared product, vendor, weakness, or advisory.
RUSTSEC-2026-0379Critical· 9.9Cranelift backend on aarch64 can jump to incorrect target on large Wasm `br_table` instruction
RUSTSEC-2026-0380Critical· 9.9Bit-packing in Cranelift compiler causes silent overflow and miscompilation
RUSTSEC-2026-0363Medium· 6.2Component-model handle tables are capped only per instance and charged to no limit
RUSTSEC-2026-0364NoneException tags can cause host data structures to be unaligned
RUSTSEC-2026-0361NonePanic when pending calls are run after a trap
RUSTSEC-2026-0362NoneWasmtime may not properly enforce async-entrypoint requirement