ZDI-26-626: Backblaze Personal Computer Backup bzfilelist Link Following Denial-of-Service Vulnerability
ZDI published ZDI-26-626 for a local denial-of-service flaw (CVE-2026-19820, CVSS 6.1) in Backblaze Personal Computer Backup's bzfilelist component.
The Zero Day Initiative published advisory ZDI-26-626 describing a link-following denial-of-service vulnerability in the bzfilelist component of Backblaze Personal Computer Backup. Local attackers must first execute low-privileged code on the target system to trigger the condition. The issue carries a CVSS score of 6.1 and is tracked as CVE-2026-19820.
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