CVE-2026-106073

Published: Ott 23, 2026 Last Modified: Ott 23, 2026
ExploitDB:
Other exploit source:
Google Dorks:
LOW 3,3
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: none

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**.

284

Improper Access Control

Incomplete
Abstraction: Pillar Structure: Simple
Common Consequences
Security Scopes Affected:
Other
Potential Impacts:
Varies By Context
Applicable Platforms
Technologies: Not Technology-Specific, ICS/OT, Web Based
View CWE Details
https://nodejs.org/en/blog/vulnerability/october-2026-secur…
https://nodejs.org/en/blog/vulnerability/october-2026-security-releases