CVE-2026-21715
CVSS Score
3.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | nodejs |
| Product | node |
| Ecosystems | |
| Industries | Technology |
| Published | Mar 30, 2026 |
| Last Updated | Apr 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Affected Versions
nodejs / node
20.20.1 ≤ 20.20.1 22.22.1 ≤ 22.22.1 24.14.0 ≤ 24.14.0 25.8.1 ≤ 25.8.1 4.0 < 4.* 5.0 < 5.* 6.0 < 6.* 7.0 < 7.* 8.0 < 8.* 9.0 < 9.* 10.0 < 10.* 11.0 < 11.* 12.0 < 12.* 13.0 < 13.* 14.0 < 14.* 15.0 < 15.* 16.0 < 16.* 17.0 < 17.* 18.0 < 18.* 19.0 < 19.*