{"id":"CVE-2026-119132","revision":"d50ad6473e234be7b5239575fed43006","records":[{"revision":"d50ad6473e234be7b5239575fed43006","observedAt":"2026-11-03T16:57:17.02+00:00","statement":{"source":"cve-program","id":"CVE-2026-119132","aliases":[],"title":"Wasmtime 49.0.0 before 49.0.3 Host Panic via Overlapping String Transcode in Fused Adapter","description":"Wasmtime from 49.0.0 before 49.0.3 contains a denial-of-service vulnerability that allows a WebAssembly guest to trigger a host panic by transcoding overlapping strings in fused adapters. Attackers can make a same-instance component-to-component call transferring a string whose source and destination alias each other, crashing the host instead of raising a trap.","state":0,"publishedAt":"2026-10-29T15:58:13.552+00:00","modifiedAt":"2026-11-03T15:55:15.048+00:00","affected":[{"ecosystem":"Vendor product","name":"wasmtime","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"bytecodealliance\",\n                    \"product\": \"wasmtime\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:cargo/wasmtime\",\n                    \"versions\": [\n                        {\n                            \"version\": \"49.0.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"49.0.3\"\n                        },\n                        {\n                            \"version\": \"49.0.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":5.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H","score":4.8,"severity":"MEDIUM"}],"references":["https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-54p9-vhhq-8f7q","https://www.vulncheck.com/advisories/wasmtime-49.0.0-before-49.0.3-host-panic-via-overlapping-string-transcode-in-fused-adapter"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119132","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-119132","identifiers":["CVE-2026-119132"]},"retained":false,"historicalAffected":[]}],"coverage":[]}