CVSS 3.1
2.9 lowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:NCVE-2024-38358
Low (2.9). EPSS 0.2% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-55f3-3qvg-8pv5 | crates.io | wasmer | <=4.3.1 | no fix published |
References
- https://github.com/wasmerio/wasmer/commit/b9483d022c602b994103f78ecfe46f017f8ac662
- https://github.com/wasmerio/wasmer/security/advisories/GHSA-55f3-3qvg-8pv5
- https://github.com/wasmerio/wasmer/commit/b9483d022c602b994103f78ecfe46f017f8ac662
- https://github.com/wasmerio/wasmer/security/advisories/GHSA-55f3-3qvg-8pv5