Windows apps · Application version · June 17, 2026

Node.js 26.3.1

Node.js 26.3.1, released June 17, 2026, fixes 12 CVEs in Node.js. None of them is reported as exploited. Patch Radar priority: Urgent. The latest Node.js is 26.12.1, which also fixes every one of these CVEs.

Urgent

Superseded. The latest Node.js is 26.12.1, which also fixes every CVE on this page. Install that instead.

CVEs closed

1 rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0371

89th percentile

Priority of the 12 CVEs

Patch now 0
                                Urgent 1
                                High 8
                                Routine 3

Applies to

Product	Version
Node.js	26.3.1

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Urgent	CVE-2026-48930	Node.js and 2 others: Improper Access Control - Generic	9.8	0.0032	None reported
High	CVE-2026-48933	Node.js and 2 others: Integer Overflow	8.1	0.0371	None reported
High	CVE-2026-48618	Node.js and 2 others: Improper Handling of Unicode Encoding	8.1	0.0314	None reported
High	CVE-2026-48619	Node.js and 2 others: Uncontrolled Resource Consumption	8.1	0.0064	None reported
High	CVE-2026-48615	Node.js and 2 others: Privacy Violation	8.1	0.0040	None reported
High	CVE-2026-48617	Node.js 22 and 2 others: Improper Access Control - Generic	8.2	0.0032	None reported
High	CVE-2026-48934	Node.js and 2 others: Improper Certificate Validation	8.1	0.0026	None reported
High	CVE-2026-48928	Node.js and 2 others: Improper Access Control - Generic	8.1	0.0022	None reported
High	CVE-2026-48935	Node.js and 2 others: Incorrect Default Permissions	8.1	0.0019	None reported
Routine	CVE-2026-48931	Node.js and 2 others: Time-of-check Time-of-use (TOCTOU) Race Condition	3.7	0.0032	None reported
Routine	CVE-2026-48932	Node.js and 2 others: HTTP Request Smuggling	3.7	0.0027	None reported
Routine	CVE-2026-48936	Node.js: Improper Access Control - Generic	3.3	0.0014	None reported

Other Node.js versions with security fixes

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