PT-2026-64022 · Usmannasir · Cyberpanel

George Chen · CVE-2026-65916 · Published 2026-07-23 · Updated 2026-07-23

NVD

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

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.

Exploit

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-65916

Affected Products

Cyberpanel

References · 4

• 🔥 https://github.com/usmannasir/cyberpanel/issues/1829 · Exploit
• https://github.com/usmannasir/cyberpanel/commit/b1984603f9b0099b39bca46fea176e53b6d4d601 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-65916 · Security Note
• https://vulncheck.com/advisories/cyberpanel-missing-authorization-in-cancelbackupcreation-handler · Note