CVE-2026-56847
Node.js Permission Model Security Bypass Vulnerability
Description
A flaw in Node.js Permission Model enforcement allows `trace_events.createTracing().enable()` Writes Trace Logs Outside `--allow-fs-write`. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects Node.js **22.x**, **24.x**, and **26.x**.
INFO
Published Date :
July 30, 2026, 6:25 a.m.
Last Modified :
Aug. 25, 2026, 5:50 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.0 | LOW | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Node.js to a version that fixes the trace events flaw.
- Ensure `--allow-fs-write` is used correctly.
- Verify permission model configuration.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-56847.
| URL | Resource |
|---|---|
| https://nodejs.org/en/blog/vulnerability/july-2026-security-releases | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-56847 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-56847
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-56847 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-56847 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 25, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* versions from (including) 22.0 up to (including) 22.23.1 *cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* versions from (including) 24.0.0 up to (including) 24.18.0 *cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* versions from (including) 26.0.0 up to (including) 26.5.0 Added Reference Type HackerOne: https://nodejs.org/en/blog/vulnerability/july-2026-security-releases Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 30, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-56847', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-30T12:34:51.815184Z'} -
New CVE Received by [email protected]
Jul. 30, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'nodejs', 'product': 'node', 'versions': [{'status': 'affected', 'version': '26.5.0', 'versionType': 'semver', 'lessThanOrEqual': '26.5.0'}, {'status': 'affected', 'version': '24.18.0', 'versionType': 'semver', 'lessThanOrEqual': '24.18.0'}, {'status': 'affected', 'version': '22.23.1', 'versionType': 'semver', 'lessThanOrEqual': '22.23.1'}], 'defaultStatus': 'unaffected'}] Added Description A flaw in Node.js Permission Model enforcement allows `trace_events.createTracing().enable()` Writes Trace Logs Outside `--allow-fs-write`. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects Node.js **22.x**, **24.x**, and **26.x**. Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Added CWE CWE-1119 Added Reference https://nodejs.org/en/blog/vulnerability/july-2026-security-releases