{"action":"Upgrade wasmtime to 36.0.19 (36.x) or 43.0.0 (43.x) or later.","affected":[{"fixed":"36.0.19","introduced":"0.0.0-0"},{"fixed":"43.0.0","introduced":"37.0.0"}],"component":"wasmtime","cve_ids":["CVE-2026-115889"],"ecosystem":"crates.io","epss":0.00454,"exploited":false,"fixed_versions":["36.0.19","43.0.0"],"ghsa_id":"GHSA-897f-g5gm-fmxm","id":"tcs_01M5JK7PV2JN7C3T3545JD37W0","modified_at":"2026-10-24T06:25:41Z","published_at":"2026-10-19T12:00:00Z","references":["https://osv.dev/vulnerability/RUSTSEC-2026-0380","https://crates.io/crates/wasmtime","https://rustsec.org/advisories/RUSTSEC-2026-0380.html","https://github.com/bytecodealliance/wasmtime/pull/12613"],"severity":{"label":"critical","score":9.9},"sources":[{"source":"osv","source_id":"RUSTSEC-2026-0380","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0380"}],"summary":"Bit-packing in Cranelift compiler causes silent overflow and miscompilation"}