{"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-2026-34945"],"ecosystem":"crates.io","epss":0.00324,"exploited":false,"fixed_versions":["36.0.7","42.0.2","43.0.1"],"ghsa_id":"GHSA-m9w2-8782-2946","id":"tcs_01M5KF1M60BZ4W1D49CS9MNJX6","modified_at":"2026-09-10T03:51:02.309275282Z","published_at":"2026-04-09T20:23:02Z","references":["https://osv.dev/vulnerability/GHSA-m9w2-8782-2946","https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m9w2-8782-2946","https://nvd.nist.gov/vuln/detail/CVE-2026-34945","https://github.com/bytecodealliance/wasmtime","https://rustsec.org/advisories/RUSTSEC-2026-0086.html"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-m9w2-8782-2946","url":"https://osv.dev/vulnerability/GHSA-m9w2-8782-2946"}],"summary":"Wasmtime has host data leakage with 64-bit tables and Winch"}