high7.5
CVE-2026-6731
X.509 name constraint bypass via the Subject Common Name when treated as a DNS-type name.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Wolfssl | Wolfssl | from 3.9.10 before 5.9.2 |