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.

HighVendor CVSS 7.5 / 10 1 CVE Published Aug 7, 2026 at 1:03 AM UTC

Summary

Mariner

CBL-Mariner Releases

Aug 7, 2026 at 1:03 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Sep 3, 2026 at 11:40 PM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Oct 28, 2026 at 9:50 AM UTC
Confirmed at the source
Our collector saw this advisory during a later source check.

Details collected from Microsoft Security Response Center.

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