Description
Certificate verification can panic when a certificate in the chain has an empty DNS name and another certificate in the chain has excluded name constraints. This can crash programs that are either directly verifying X.509 certificate chains, or those that use TLS.
Scores
CVSS v3
5.9
EPSS
0.0003
EPSS Percentile
9.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-295
Status
published
Products (2)
Go standard library/crypto/x509
1.26.0-0 - 1.26.1
golang/go
1.26.0
Published
Mar 06, 2026
Tracked Since
Mar 07, 2026