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RUSTSEC-2026-0268

Guest controlled-size host heap allocation through WASIp3 streams

Details

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-x84v-gj2h-g759 For more information see the GitHub-hosted security advisory.

Are you affected?

Enter the version of the package you're using.

Affected packages

crates.io/wasmtime

Introduced in: 46.0.0Fixed in: 46.0.3

Upgrade wasmtime to 46.0.3 or newer (ecosystem crates.io).

References

https://crates.io/crates/wasmtime[PACKAGE]
https://rustsec.org/advisories/RUSTSEC-2026-0268.html[ADVISORY]
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-x84v-gj2h-g759[ADVISORY]