vulnerability
Ubuntu: USN-8222-1 (CVE-2026-35414): OpenSSH vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:M/Au:S/C:P/I:P/A:N) | Apr 2, 2026 | Apr 29, 2026 | May 3, 2026 |
Severity
5
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:N)
Published
Apr 2, 2026
Added
Apr 29, 2026
Modified
May 3, 2026
Description
OpenSSH before 10.3 mishandles the authorized_keys principals option in uncommon scenarios involving a principals list in conjunction with a Certificate Authority that makes certain use of comma characters.
Solutions
ubuntu-upgrade-openssh-clientubuntu-upgrade-openssh-server
References
- CVE-2026-35414
- https://attackerkb.com/topics/CVE-2026-35414
- CWE-670
- EUVD-EUVD-2026-18480
- UBUNTU-USN-8222-1
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-18480
- https://ubuntu.com/security/notices/USN-8222-1
- https://www.cve.org/CVERecord?id=CVE-2026-35414
- https://www.openssh.org/releasenotes.html#10.3p1
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.