{"schema_version":"1.9.0","id":"RUSTSEC-2026-0380","published":"2026-10-19T12:00:00Z","modified":"2026-10-24T06:25:41Z","aliases":["CVE-2026-115889","GHSA-897f-g5gm-fmxm"],"summary":"Bit-packing in Cranelift compiler causes silent overflow and miscompilation","details":"This is an entry in the RustSec database for the Wasmtime security advisory\nlocated at\nhttps://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-897f-g5gm-fmxm\nFor more information see the GitHub-hosted security advisory.","affected":[{"package":{"name":"wasmtime","ecosystem":"crates.io","purl":"pkg:cargo/wasmtime"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"36.0.19"},{"introduced":"37.0.0"},{"fixed":"43.0.0"}]}],"ecosystem_specific":{"affected_functions":null,"affects":{"arch":[],"functions":[],"os":[]}},"database_specific":{"categories":[],"cvss":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","informational":null,"source":"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0380.json"}}],"references":[{"type":"PACKAGE","url":"https://crates.io/crates/wasmtime"},{"type":"ADVISORY","url":"https://rustsec.org/advisories/RUSTSEC-2026-0380.html"},{"type":"WEB","url":"https://github.com/bytecodealliance/wasmtime/pull/12613"}],"database_specific":{"license":"CC0-1.0"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}