ZDI-26-626: Backblaze Personal Computer Backup bzfilelist Link Following Denial-of-Service Vulnerability

This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Backblaze Personal Computer Backup. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.

• The following CVEs are assigned: CVE-2026-19820.