RUSTSEC-2026-0096

vendorUSosv

Miscompiled guest heap access enables sandbox escape on aarch64 Cranelift

view advisory published 2026-04-09Licence: CC0-1.0

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-jhxm-h53p-jm7w For more information see the GitHub-hosted security advisory.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-34971US	—	0.39% (32nd)	—	2026-04-09
Wasmtime is a runtime for WebAssembly. From 32.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's Cranelift compilation backend contains a bug on aarch64 when performing a certai…

references

External citations — patches, advisories, analysis.

https://crates.io/crates/wasmtimePACKAGE
https://github.com/bytecodealliance/wasmtime/pull/13013WEB
https://rustsec.org/advisories/RUSTSEC-2026-0096.htmlADVISORY

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