{"id":"CVE-2024-30266","aliases":["GHSA-75hq-h6g9-h4q5","PYSEC-2024-327","RUSTSEC-2024-0441"],"url":"https://o3.security/vulnerability/CVE-2024-30266","summary":"Wasmtime vulnerable to panic when using a dropped extenref-typed element segment","details":"wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host runtime. A valid WebAssembly module, when executed at runtime, may cause this panic. This vulnerability has been patched in version 19.0.1.","published":"2024-04-04T15:42:00.200Z","modified":"2026-08-12T03:51:37.227324133Z","cvss":{"score":3.3,"severity":"LOW","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"wasmtime","fixedVersion":"19.0.1"}],"fix":{"url":"https://github.com/bytecodealliance/wasmtime/commit/7f57d0bb0948fa56cc950278d0db230ed10e8664","label":"bytecodealliance/wasmtime@7f57d0b"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/30xxx/CVE-2024-30266.json"},{"type":"ADVISORY","url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-75hq-h6g9-h4q5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-30266"},{"type":"REPORT","url":"https://github.com/bytecodealliance/wasmtime/issues/8281"},{"type":"FIX","url":"https://github.com/bytecodealliance/wasmtime/commit/7f57d0bb0948fa56cc950278d0db230ed10e8664"},{"type":"FIX","url":"https://github.com/bytecodealliance/wasmtime/pull/8018"},{"type":"FIX","url":"https://github.com/bytecodealliance/wasmtime/pull/8283"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:37.227324133Z"}}