RUSTSEC-2026-0223

vendorUSosv

Preemption and traps during bulk operations enable breaking internal VM state

view advisory published 2026-07-31Licence: 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-2hw9-mc66-jc2q For more information see the GitHub-hosted security advisory.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-104855US	—	0.28% (20th)	—	2026-10-02
Wasmtime is a runtime for WebAssembly. From 46.0.0 until 46.0.2 and 47.0.3, fuel and epoch preemption checks inside bulk operations including memory.copy, table.grow, and array.cop…

references

External citations — patches, advisories, analysis.

https://crates.io/crates/wasmtimePACKAGE
https://github.com/bytecodealliance/wasmtime/pull/14045WEB
https://rustsec.org/advisories/RUSTSEC-2026-0223.htmlADVISORY

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