CVE-2026-48618
Published:June 26, 2026
Updated:June 29, 2026
A flaw in Node.js TLS hostname handling can cause Node.js unicode dot separator handling can lead to tls wildcard-depth authentication bypass due to resolver and verifier hostname normalization mismat. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects all supported release lines: Node.js 22, Node.js 24, and Node.js 26.
Affected Packages
https://github.com/nodejs/node.git (GITHUB):
Affected version(s) >=v24.0.0 <v24.17.0Fix Suggestion:
Update to version v24.17.0https://github.com/nodejs/node.git (GITHUB):
Affected version(s) >=v26.0.0 <v26.3.1Fix Suggestion:
Update to version v26.3.1https://github.com/nodejs/node.git (GITHUB):
Affected version(s) >=v22.0.0 <v22.23.0Fix Suggestion:
Update to version v22.23.0Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Handling of Unicode Encoding
EPSS
Base Score:
0.61