Wasmtime: Bit-packing in Cranelift compiler causes silent overflow and miscompilation
High-risk advisory
CVE-2026-115889
Summary
Wasmtime: Bit-packing in Cranelift compiler causes silent overflow and miscompilation
Why it matters
GitHub has published a reviewed security advisory for wasmtime. Prioritize it with other application dependency updates.
Operator check
Check whether wasmtime is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.