Vulnerability in Node.js Node
CVE-2026-58043
A flaw in Node.js Permission Model enforcement can over-grant filesystem access across radix-tree prefix boundaries. Under `--permission`, an attacker who is granted access to one path can abuse boundary handling to read from or write to paths outside the intended filesystem allowlist. This vulnerability affects Node.js **main**, **22.x**, **24.x**, and **26.x**.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.001 (3.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.001 · change: -0.000
Affected products
- Node.js Node — versions 22.23.1, 24.18.0, 26.5.0
- Node.js
Weakness classification (CWE)
Public proof-of-concept exploits
References
- nodejs.org/en/blog/vulnerability/july-2026-security-releases (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-58043?
- CVE-2026-58043 is a high-severity vulnerability in Node.js Node, classified under Improper Access Control. CVSS score: 8.4/10. Published 2026-07-30.
- How severe is CVE-2026-58043?
- High severity. CVSS v3 base score is 8.4 out of 10.
- Is CVE-2026-58043 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.