{"id":"CVE-2026-115393","revision":"0ca930b887ef420cab5c5da7f4917609","records":[{"revision":"0ca930b887ef420cab5c5da7f4917609","observedAt":"2026-10-25T05:17:25.909+00:00","statement":{"source":"nvd","id":"CVE-2026-115393","aliases":[],"title":"Wasmtime before 24.0.12, 25.0.0 before 36.0.13, 37.0.0 before 46.0.2, and 47.0.0 before 47.0.3 contains a type confusion vulnerability because several Store APIs fail to validate that objects belong to the Store's Engine. Embedders mixing o…","description":"Wasmtime before 24.0.12, 25.0.0 before 36.0.13, 37.0.0 before 46.0.2, and 47.0.0 before 47.0.3 contains a type confusion vulnerability because several Store APIs fail to validate that objects belong to the Store's Engine. Embedders mixing objects between Engines via Instance::new, StructRefPre::new, or Tag::new can trigger trampoline signature mismatches causing out-of-bounds stack writes, GC heap corruption, or panics.","state":0,"publishedAt":"2026-10-22T19:17:47.033+00:00","modifiedAt":"2026-10-22T19:17:47.15+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · disclosure@vulncheck.com · Secondary","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":1,"severity":"LOW"},{"system":"CVSS 3.1 · disclosure@vulncheck.com · Primary","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L","score":3.8,"severity":"LOW"}],"references":["https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hgjw-h833-99q9","https://www.vulncheck.com/advisories/wasmtime-before-24.0.12-25.0.0-before-36.0.13-37.0.0-before-46.0.2-and-47.0.0-before-47.0.3-cross-engine-type-confusion"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-115393","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-787"],"productCriteria":[],"sourceDates":{"published":"2026-10-22T19:17:47.033","lastModified":"2026-10-22T19:17:47.150"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-115393","identifiers":["CVE-2026-115393"]},"retained":false,"historicalAffected":[]}],"coverage":[]}