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CVE-2026-6731
Component Overview
Vulnerability Overview
Name
CVE-2026-6731
Source
NVD (
link
)
Debian (
link
)
Description
X.509 name constraint bypass via the Subject Common Name when treated as a DNS-type name. A certificate whose Subject CN violates an issuing CA's DNS name constraints could be accepted.
CWEs
CWE-295
Published Date
Jun 25, 2026
Updated Date
Jun 27, 2026
Workaround
-
Advisories
https://github.com/wolfSSL/wolfssl/pull/10223
Issue Tracking
https://www.wolfssl.com/docs/security-vulnerabilities/
Vendor Advisory
Analysis
#
Affected Component
Analysis
wolfssl
Exploitable
Vulnerability Ratings
#
6
CVSSv4
7.5
CVSSv31
NaN
other
Others affected components
#
Name
Project
Project Version
Version
Status
wolfssl
buildroot
2025.02.x
5.9.2
Not Affected
wolfssl
buildroot
master
5.9.2
Not Affected
wolfssl
openwrt
master
5.9.2-r1
Not Affected
wolfssl
openwrt
openwrt-25.12
5.9.2-r1
Not Affected
wolfssl
yocto
master
5.9.2
Not Affected
wolfssl
yocto
scarthgap
5.7.2
Exploitable