RUSTSEC-2026-0088

vendorUSosv

Data leakage between pooling allocator instances

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-6wgr-89rj-399p For more information see the GitHub-hosted security advisory.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-34988US	medium6.3	0.29% (21st)	—	2026-04-09
Wasmtime is a runtime for WebAssembly. From 28.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's implementation of its pooling allocator contains a bug where in certain configur…

references

External citations — patches, advisories, analysis.

https://crates.io/crates/wasmtimePACKAGE
https://github.com/bytecodealliance/wasmtime/pull/13008WEB
https://rustsec.org/advisories/RUSTSEC-2026-0088.htmlADVISORY

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