High severity8.1NVD Advisory· Published Jul 23, 2026· Updated Jul 23, 2026
CVE-2026-65916
CVE-2026-65916
Description
CyberPanel through 1.9.1, fixed in commit b198460, contains a missing authorization vulnerability in the cancelBackupCreation handler that allows authenticated users to kill, delete, and corrupt other tenants' backups. Attackers can send crafted POST requests with arbitrary backupCancellationDomain and fileName parameters to terminate backup processes, delete backup archives, corrupt backup status files, and remove database records belonging to other tenants.
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Affected products
1- Range: <=1.9.1
Patches
Vulnerability mechanics
References
3News mentions
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