Read the docs
TI-2026-46954 Aliases CVE-2026-65916GHSA-4r84-m75g-p4ww

CyberPanel Missing Authorization in cancelBackupCreation Handler

Priority HIGH 65CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00488 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
usmannasircyberpanelup to 1.9.1—Patch availableCNA
  • cyberpanel Vendorusmannasir Affected up to 1.9.1 Fixed in — Patch available CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-65916
  2. 2026-10-03 Alias added: GHSA-4r84-m75g-p4ww

References

Exploit 1

Patch 1

  • TI-2026-50261 CyberPanel 2.4.3 Authenticated Command Injection via starRemoteTransfer CVSS 4.0HIGH 8.7
  • TI-2026-46955 CyberPanel IncBackups IDOR via Sequential Backup ID CVSS 4.0HIGH 8.7
  • TI-2026-50259 CyberPanel 2.4.3 Arbitrary File Read via File Manager ZIP Upload CVSS 4.0HIGH 7.1
  • TI-2026-47768 CyberPanel < 3.0.0 Hard-coded JWT Secret Authentication Bypass via WebTerminal CVSS 4.0CRITICAL 9.3
  • TI-2026-60279 CyberPanel before 3.0.5 Authentication Bypass via API CVSS 4.0HIGH 8.6
  • TI-2026-50260 CyberPanel 2.4.3 Authenticated RCE via Remote Backup Feature CVSS 4.0HIGH 8.7
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences