CVE-2024-36137

nodejs: fs.fchown/fchmod bypasses permission model

Published Sep 7, 2024 CVSS 3.1 · 3.9 Low EPSS < 1% KEV · Not listed
Description
A vulnerability has been identified in Node.js, affecting users of the experimental permission model when the --allow-fs-write flag is used.

Node.js Permission Model do not operate on file descriptors, however, operations such as fs.fchown or fs.fchmod can use a "read-only" file descriptor to change the owner and permissions of a file.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-36333 A vulnerability has been identified in Node.js, affecting users of the experimental permission model when the --allow-fs-write flag is used. Node.js Permission Model do not operate on file descriptors, however, operations such as fs.fchown or fs.fchmod can use a "read-only" file descriptor to change the owner and permissions of a file.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A flaw was found in Node.js, affecting users of the experimental permission model when the --allow-fs-write flag is used. The Node.js Permission Model does not operate on file descriptors. However, operations such as fs.fchown or fs.fchmod can use a "read-only" file descriptor to change the owner and permissions of a file. A vulnerability has been identified in Node.js, affecting users of the experimental permission model when the --allow-fs-write flag is used. Node.js Permission Model do not operate on file descriptors, however, operations such as fs.fchown or fs.fchmod can use a "read-only" file descriptor to change the owner and permissions of a file.
References
Metrics cvssV3_0

{'score': 3.3, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
Apr 30, 2025, 10:25 PM
Reserved
May 21, 2024, 1:04 AM
Status
Deferred
Published
Sep 7, 2024, 4:15 PM
Modified
Jun 17, 2026, 7:36 AM
Severity
Low
Public date
Jul 8, 2024, 12:00 AM