# CVE-2026-106071: CVE-2026-106071

Status: published. Published: 2026-10-23. Updated: 2026-11-02.

A flaw in Node.js Permission Model filesystem enforcement can grant access to paths that do not match a wildcard `--allow-fs-read` or `--allow-fs-write` rule.

When the requested path is shorter than the prefix of a wildcard grant, the radix tree lookup stops comparing early and treats the path as a match. For example, `--allow-fs-read=/etc/passwd.*` also allows reading `/etc/passwd`. This requires the wildcard grant to sit directly under the root of the permission tree, for example when it is the only grant for that scope. This is a different root cause from CVE-2026-58043.

This vulnerability affects Node.js **26.x**.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- nodejs / node: ≥ 26.12.0; ≤ 26.12.0 (affected, semver). Source: CNA: hackerone

## Severity and prioritization

- CVSS 3.0: 3.6 (low); CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N/CR:M/IR:M/AR:M; source: CNA: hackerone

- CVSS 3.0: 3.6 (low); CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N; source: NVD: support@hackerone.com

- CISA KEV: No listing in collected sources

- EPSS: 0.20% as of 2026-11-02; percentile 9.79%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-284

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://nodejs.org/en/blog/vulnerability/october-2026-security-releases (CNA: hackerone)

- https://nodejs.org/en/blog/vulnerability/october-2026-security-releases (support@hackerone.com)

## Provenance

- CNA: hackerone: https://www.cve.org/CVERecord?id=CVE-2026-106071; retrieved 2026-11-02; source updated 2026-11-02

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-106071; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-106071; retrieved 2026-11-02; source updated Not reported

Revision: 1247d41f9c9c18f635243c3c4a2f87fe5ebd249965497742b8a959b9f5dbdf51

Canonical: https://y2.dev/cve/CVE-2026-106071

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