CLEANSTART-2026-KC53993 When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh

CVE-2026-39832 affects multiple packages. When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh. See references for individual vulnerability details...

CLEANSTART-2026-IF71348 When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh

Security vulnerability affects the consul package. When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh...

CLEANSTART-2026-WU91498 When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh

Security vulnerability affects the loki package. When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : Go Cryptography vulnerabilities (USN-8447-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8447-1 advisory. It was discovered that Go Cryptography did not properly handle SSH global request responses. ...

Important: nerdctl

Issue Overview: Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service. CVE-2026-25680 Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt ...

USN-6565-1 openssh vulnerabilities

It was discovered that OpenSSH incorrectly handled supplemental groups when running helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand as a different user. An attacker could possibly use this issue to escalate privileges. This issue only affected Ubuntu 20.04 LTS...

USN-6560-1 openssh vulnerabilities

Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being...