{"id":"CVE-2024-38358","aliases":["GHSA-55f3-3qvg-8pv5"],"url":"https://o3.security/vulnerability/CVE-2024-38358","summary":"Symlink bypasses filesystem sandbox in wasmer","details":"Wasmer is a web assembly (wasm) Runtime supporting WASIX, WASI and Emscripten. If the preopened directory has a symlink pointing outside, WASI programs can traverse the symlink and access host filesystem if the caller sets both `oflags::creat` and `rights::fd_write`. Programs can also crash the runtime by creating a symlink pointing outside with `path_symlink` and `path_open`ing the link. This issue has been addressed in commit `b9483d022` which has been included in release version 4.3.2. Users are advised to upgrade. There are no known workarounds for this vulnerability.","published":"2024-06-19T19:55:26.111Z","modified":"2026-07-15T01:48:54.823160054Z","cvss":{"score":2.9,"severity":"LOW","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"wasmer","fixedVersion":null}],"fix":{"url":"https://github.com/wasmerio/wasmer/commit/b9483d022c602b994103f78ecfe46f017f8ac662","label":"wasmerio/wasmer@b9483d0"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38358.json"},{"type":"ADVISORY","url":"https://github.com/wasmerio/wasmer/security/advisories/GHSA-55f3-3qvg-8pv5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-38358"},{"type":"FIX","url":"https://github.com/wasmerio/wasmer/commit/b9483d022c602b994103f78ecfe46f017f8ac662"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:48:54.823160054Z"}}