{"cve":"CVE-2023-51661","nvd":{"published":"2023-12-22T15:15:08.377","modified":"2026-06-17T06:41:24.997","status":"Modified","description":"Wasmer is a WebAssembly runtime that enables containers to run anywhere: from Desktop to the Cloud, Edge and even the browser. Wasm programs can access the filesystem outside of the sandbox. Service providers running untrusted Wasm code on Wasmer can unexpectedly expose the host filesystem. This vulnerability has been patched in version 4.2.4.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","score":8.6},"cwes":["CWE-284"],"references":["https://github.com/wasmerio/wasmer/commit/4d63febf9d8b257b0531963b85df48d45d0dbf3c","https://github.com/wasmerio/wasmer/issues/4267","https://github.com/wasmerio/wasmer/security/advisories/GHSA-4mq4-7rw3-vm5j","https://github.com/wasmerio/wasmer/commit/4d63febf9d8b257b0531963b85df48d45d0dbf3c","https://github.com/wasmerio/wasmer/issues/4267"],"products":["wasmer:wasmer"],"source":"nvd","synced_at":"2026-10-19T21:43:38.875533635+00:00"},"epss":{"cve":"CVE-2023-51661","score":0.00595,"percentile":0.48453,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-4mq4-7rw3-vm5j","url":"https://osv.dev/vulnerability/GHSA-4mq4-7rw3-vm5j","summary":"Wasmer filesystem sandbox not enforced","modified":"2026-09-10T03:49:59.270552989Z","packages":[{"ecosystem":"crates.io","name":"wasmer-cli","purl":"pkg:cargo/wasmer-cli","ranges":[">=3.0.0 <4.2.4"],"fixed":["4.2.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}