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CVE-2026-106071

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

nodejs nodeRuntimes & languages
Open in ThreatlineRecord JSON
CVSS
3.6Low
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.14%Chance of exploitation activity in the next 30 days, higher than 3% of CVEs. Scored 24 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published23 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 23 Oct 2026, 16:15 UTCPublishedCVE List
  2. 23 Oct 2026, 23:48 UTCExploit code publicGitHub proof-of-concept repositories

Reports 3

1 outlet mention it. Reports are not confirmation; each links to its source.

Description

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.

Text from CVE List

Affected versions 1

  • nodeaffected: 26.12.0 through 26.12.0CVE List

References 1