CVE-2025-61727
Published: December 4, 2025Last modified: December 23, 2025
Description
An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. For example a constraint that excludes the subdomain test.example.com does not prevent a leaf certificate from claiming the SAN *.example.com.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | LOW |
| Integrity impact | LOW |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | go | Fixed (1.24.11-r0) |
| 25 LTS | go | Fixed (1.24.11-r0) | |
| Stream | docker | Fixed (29.1.2-r1) | |
| go | Fixed (1.25.5-r0) | ||
| Hardened Containers | 23 LTS | go | Fixed (1.24.11-r0) |
| 25 LTS | go | Fixed (1.24.11-r0) | |
| Stream | go | Fixed (1.25.5-r0) |