{"action":"Upgrade wasmtime-bin to 37.0.2 or later.","affected":[{"fixed":"37.0.2","introduced":"0"}],"component":"wasmtime-bin","cve_ids":["CVE-2025-61670"],"ecosystem":"PyPI","epss":0.00195,"exploited":false,"fixed_versions":["37.0.2"],"ghsa_id":"GHSA-vvp9-h8p2-xwfc","id":"tcs_01M5KF3RCAZ298GPC8SN3EGV3C","modified_at":"2026-07-14T18:00:14.986451643Z","published_at":"2026-07-14T17:48:35Z","references":["https://osv.dev/vulnerability/GHSA-vvp9-h8p2-xwfc","https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-vvp9-h8p2-xwfc","https://nvd.nist.gov/vuln/detail/CVE-2025-61670","https://github.com/bytecodealliance/wasmtime/commit/adff9d9d0f09569203709d5687e5a7dc8e1ad0a3","https://github.com/bytecodealliance/wasmtime","https://github.com/bytecodealliance/wasmtime/releases/tag/v37.0.2","https://github.com/pypa/advisory-database/tree/main/vulns/wasmtime-bin/PYSEC-2025-268.yaml"],"severity":{"label":"low","score":3.3},"sources":[{"source":"osv","source_id":"GHSA-vvp9-h8p2-xwfc#PyPI/wasmtime-bin","url":"https://osv.dev/vulnerability/GHSA-vvp9-h8p2-xwfc"}],"summary":"Wasmtime: Memory leak in C API with `externref` and `anyref` types"}