{"affected":[{"defaultStatus":"unaffected","ecosystem":"cargo","packageName":"wasmtime","product":"wasmtime","source":"CNA: VulnCheck","vendor":"bytecodealliance","versions":[{"lessThan":"48.0.6","status":"affected","version":"46.0.0","versionType":"semver"},{"status":"unaffected","version":"48.0.6","versionType":"semver"},{"lessThan":"49.0.3","status":"affected","version":"49.0.0","versionType":"semver"},{"status":"unaffected","version":"49.0.3","versionType":"semver"}]}],"cveId":"CVE-2026-119139","cwes":["CWE-617"],"description":"Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a leftover assertion in component::Func::call that rejects guest exports using the async ABI option. An attacker who supplies a component with an async-lifted export can crash the host process when an embedder invokes that export through Func::call.","epss":{"date":"2026-11-03","percentile":0.10972,"score":0.00208},"exploits":[],"kev":null,"metrics":[{"score":5.9,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":4.8,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1793755744755,"publishedAt":1793289499056,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m6w2-jwq2-cv2c"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-func-call"}],"remediation":[],"revision":"cedccd6fdef0babfc6ed1b2f55b5aec6af92b5cfd2bc280da0c840696eefa019","sources":[{"modifiedAt":1793755744755,"name":"CNA: VulnCheck","retrievedAt":1793758136724,"url":"https://www.cve.org/CVERecord?id=CVE-2026-119139"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793758140720,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-119139"}],"ssvc":{"assessedAt":1793755730312,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Host Panic via Func::call","updatedAt":1793758140720}