Wasmtime GitHub notifications bot (Oct 19 2026 at 15:42): Wasmtime GitHub notifications bot (Oct 19 2026 at 15:42):alexcrichton opened issue #14810:
Currently lifting a map from a guest allocates memory based on the guest-supplied size, and then the size is validated to fit within fuel limits.
This means that the guest can control how much memory the host allocates, which is generally considered a DoS vector.
Wasmtime GitHub notifications bot (Oct 19 2026 at 15:42):alexcrichton added the wasm-proposal:component-model-map label to Issue #14810.
Wasmtime GitHub notifications bot (Oct 20 2026 at 20:24):alexcrichton closed issue #14810:
Currently lifting a map from a guest allocates memory based on the guest-supplied size, and then the size is validated to fit within fuel limits.
This means that the guest can control how much memory the host allocates, which is generally considered a DoS vector.
Last updated: Oct 31 2026 at 23:03 UTC