Is CVE-2026-106073 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-106073?

CVE-2026-106073 has a CVSS v3 severity of LOW (3.3).

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CVE-2026-106073

Description

A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync()` without the required read permission checks. This is an incomplete fix of CVE-2026-21715, which only covered `fs.realpathSync.native()`. As a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.