CVE-2026-42012
Publication date 30 April 2026
Last updated 13 May 2026
Ubuntu priority
Description
Certificates containing URI or SRV Subject Alternative Names would fall back to checking DNS hostnames against Common Name, allowing potential misuse of such certificates beyond their original purpose.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| gnutls28 | 26.04 LTS resolute |
Needs evaluation
|
| 25.10 questing |
Needs evaluation
|
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|