Description
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**.
References (1)
Core 1
Scores
CVSS v3
6.5
EPSS
0.0067
EPSS Percentile
47.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-176
Status
published
Products (6)
nodejs/node
22.22.3
nodejs/node
24.16.0
nodejs/node
26.3.0
nodejs/node.js
22.22.3
nodejs/node.js
24.16.0
nodejs/node.js
26.3.0
Published
Jun 26, 2026
Tracked Since
Jun 26, 2026