CVE-2026-65916

Summary

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.

Affected Software

VendorProductVersion RangeStatus
usmannasircyberpanel0 <= 1.9.1affected
usmannasircyberpanelb1984603f9b0099b39bca46fea176e53b6d4d601unaffected

Weaknesses

  • CWE-862: Missing Authorization

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

References