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CVE-2026-106073

LOW
3.3
CVSS Score
Published: October 23, 2026 at 04:15 PM UTC
Updated: October 23, 2026 at 07:42 PM UTC
1 product affected across 1 vendorNode.js

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Severity
LOW3.3
Exploit prediction
EPSS 0.3%

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**.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Node.js· Node.js
90%
22.23.324.22.026.12.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://nodejs.org/en/blog/vulnerability/october-2026-security-releases

CVSS

3.3LOWhackerone
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-284

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