GHSA-wf7v-f5qh-m5xvMediumCVSS 4.8
Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability...
🔗 CVE IDs covered (1)
📋 Description
Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows malicious components to panic the host via thread.yield in start functions. Attackers can supply a component whose start function calls an async-lowered import then thread.yield, causing an undisposed fiber drop that crashes embedders.
🔗 References (4)
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-5hhx-4wrr-3j9g
- https://nvd.nist.gov/vuln/detail/CVE-2026-119140
- https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-thread-yield
- https://github.com/advisories/GHSA-wf7v-f5qh-m5xv