{"action":"Upgrade wasmtime to 36.0.7 or later.","affected":[{"fixed":"36.0.7","introduced":"25.0.0"},{"fixed":"42.0.2","introduced":"37.0.0"},{"fixed":"43.0.1","introduced":"43.0.0"}],"component":"wasmtime","cve_ids":["CVE-2026-34987"],"ecosystem":"crates.io","epss":0.0049,"exploited":false,"fixed_versions":["36.0.7","42.0.2","43.0.1"],"ghsa_id":"GHSA-xx5w-cvp6-jv83","id":"tcs_01M5KF512ZPTFSVJAGHESFNMK8","modified_at":"2026-09-10T03:51:04.079605148Z","published_at":"2026-04-10T15:31:18Z","references":["https://osv.dev/vulnerability/GHSA-xx5w-cvp6-jv83","https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-xx5w-cvp6-jv83","https://nvd.nist.gov/vuln/detail/CVE-2026-34987","https://github.com/bytecodealliance/wasmtime","https://rustsec.org/advisories/RUSTSEC-2026-0095.html"],"severity":{"label":"critical"},"sources":[{"source":"osv","source_id":"GHSA-xx5w-cvp6-jv83","url":"https://osv.dev/vulnerability/GHSA-xx5w-cvp6-jv83"}],"summary":"Wasmtime with Winch compiler backend on aarch64 may allow a sandbox-escaping memory access"}