RUSTSEC-2026-0095

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Source

https://rustsec.org/advisories/RUSTSEC-2026-0095

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0095.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2026-0095

Aliases

CVE-2026-34987
GHSA-xx5w-cvp6-jv83

Published

2026-04-09T12:00:00Z

Modified

2026-04-09T20:00:29.333365Z

Severity

9.0 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator

Summary

Wasmtime with Winch compiler backend may allow a sandbox-escaping memory access

Details

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-xx5w-cvp6-jv83 For more information see the GitHub-hosted security advisory.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / wasmtime

Package

Name: wasmtime; View open source insights on deps.dev
Purl: pkg:cargo/wasmtime

Affected ranges

Type: SEMVER
Events: Introduced

0.0.0-0

Fixed

36.0.7

Introduced

37.0.0

Fixed

42.0.2

Introduced

43.0.0

Fixed

43.0.1

Ecosystem specific

{
    "affected_functions": null,
    "affects": {
        "functions": [],
        "arch": [],
        "os": []
    }
}

Database specific

source

"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0095.json"

informational

null