Input validation

rubygems.org is the Ruby community's primary gem library hosting service. Insufficient input validation allowed malicious actors to replace any uploaded gem version that had a platform, version number, or gem name matching /-\d/, permanently replacing the legitimate upload in the canonical gem...

CVE-2023-40165 Unauthorized gem replacement for full names ending in numbers on rubygems.org

rubygems.org is the Ruby community's primary gem library hosting service. Insufficient input validation allowed malicious actors to replace any uploaded gem version that had a platform, version number, or gem name matching /-\d/, permanently replacing the legitimate upload in the canonical gem...