RUSTSEC-2026-0327

Source
https://rustsec.org/advisories/RUSTSEC-2026-0327
Import Source
https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0327.json
JSON Data
https://api.osv.dev/v1/vulns/RUSTSEC-2026-0327
Aliases
  • GHSA-32h6-97mm-8q3c
Published
2026-10-02T12:00:00Z
Modified
2026-10-02T20:30:02Z
Severity
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H CVSS Calculator
Summary
Wasmtime component async-lifted callback result count is unvalidated, causing a native stack buffer overflow
Details

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-32h6-97mm-8q3c 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
39.0.0
Fixed
48.0.4
Introduced
49.0.0
Fixed
49.0.2

Ecosystem specific

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

Database specific

categories
[]
cvss
"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H"
informational
null
source
"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0327.json"