Cette page suit l'état du correctif pour Ubuntu. La vulnérabilité elle-même est décrite sur la page CVE principale. Voir CVE-2026-53791 →

UBUNTU-CVE-2026-53791

rsync daemon before 3.5.0 contains an IP address spoofing vulnerability that allows unauthenticated remote attackers to bypass IP-based access control...

Description d'origine

La description telle que publiée par la source (souvent en anglais).

rsync daemon before 3.5.0 contains an IP address spoofing vulnerability that allows unauthenticated remote attackers to bypass IP-based access controls by sending a crafted PROXY protocol header with a forged source address. Attackers who can connect directly to the rsync daemon can inject a spoofed source IP in the PROXY protocol header to circumvent hosts allow/deny rules, gaining unauthorized access that would otherwise be blocked based on their real source address.

Source: OSV.dev (Open Source Vulnerabilities) OSV