CVE-2023-26489Critical· 9.9▾ MidnightGuest-controlled out-of-bounds read/write on x86\_64
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 54.5 · likelihood 0.3 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 13.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
1.3%
This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-ff4p-7xrq-q5r8. For more information see the GitHub-hosted security advisory.
wasmtime >= 6.0.0, < 6.0.1Upgrade to a patched release:
wasmtime 6.0.1Connected by shared product, vendor, weakness, or advisory.
RUSTSEC-2026-0424NoneUnchecked memory usage in transferring borrowed resources between components
RUSTSEC-2026-0423NoneCross-engine type confusion with host-created struct-types-with-supertypes
RUSTSEC-2026-0422Low· 1.8Typed functions with `i31` or `nullref` arguments may panic due to insufficient type-check
CVE-2026-119133NoneException tags can cause host data structures to be unaligned
CVE-2026-119134Medium· 6.2Component-model handle tables are capped only per instance and charged to no limit
CVE-2026-119136NoneWasmtime may not properly enforce async-entrypoint requirement