Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : Authlib vulnerabilities (USN-8557-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8557-1 advisory. Jay Neiva and Mauro Carrillo discovered that Authlib did not properly validate cryptographic keys embedded in JWT headers. An...

USN-8557-1: Authlib vulnerabilities

Jay Neiva and Mauro Carrillo discovered that Authlib did not properly validate cryptographic keys embedded in JWT headers. An attacker could possibly use this issue to forge trusted tokens, resulting in authentication and authorization bypass. CVE-2026-27962 Jay Neiva and Mauro Carrillo discovere...

Ubuntu 22.04 LTS / 24.04 LTS : Authlib vulnerabilities (USN-8065-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8065-1 advisory. Millie Solem discovered that Authlib did not properly restrict algorithm selection during JWT verification, allowing HMAC verification with...