RUSTSEC-2026-0358GHSA-5HHX-4WRR-3J9G
Yielding in a component start function can lead to a host panic
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 48.0.6, 49.0.3
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Wasmtime, a WebAssembly runtime used to execute Wasm code from embedded applications and services, is affected. A malicious or specially crafted component whose start function yields can cause the host process to panic, resulting in a denial of service.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-5hhx-4wrr-3j9g For more information see the GitHub-hosted security advisory.
Timeline
- Advisory published
- Record last updated
Affected versions
- wasmtimecrates.io
From 46.0.0 · fixed in 48.0.6; From 49.0.0 · fixed in 49.0.3