CVE-2026-5260
Publication date 30 April 2026
Last updated 22 May 2026
Ubuntu priority
Description
For a server using an RSA key backed by a PKCS#11 token, a client sending an extremely short premaster secret during an RSA key exchange could trigger a short heap overread.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| gnutls28 | 26.04 LTS resolute |
Fixed 3.8.12-2ubuntu1.1
|
| 25.10 questing |
Fixed 3.8.9-3ubuntu2.2
|
|
| 24.04 LTS noble |
Fixed 3.8.3-1.1ubuntu3.6
|
|
| 22.04 LTS jammy |
Fixed 3.7.3-4ubuntu1.9
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
References
Related Ubuntu Security Notices (USN)
- USN-8284-1
- GnuTLS vulnerabilities
- 20 May 2026