CVE search · CVE-2026-21715
CVE-2026-21715
low 3.3
A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync.native()` without the required read permission checks, while all comparable filesystem functions correctly enforce them. As a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync.native()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories. This vulnerability affects **20.x, 22.x, 24.x, and 25.x** processes using the Permission Model where `--allow-fs-read` is intentionally restricted.
Details
- Status
- Analyzed
- Published
- Last changed
- Source
- support@hackerone.com
- Weakness
- CWE-732
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.0 | low 3.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
support@hackerone.comSecondary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- nodejs · node.js