CVE-2026-29200

Critical IDOR in Comet Backup Enables Tenant Admin Impersonation

Published May 4, 2026 CVSS 4.0 · 9.9 Critical EPSS < 1% KEV · Not listed
Description
A critical IDOR vulnerability has been discovered in Comet Backup affecting all versions from 20.11.0 to 26.1.1 and 26.2.1. The vulnerability allows a tenant administrator to impersonate any end-user account of other tenants on the same server via a vulnerable API call.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Webpros
Webpros comet Backup
Vendors & Products Webpros
Webpros comet Backup
Type Values Removed Values Added
Title Critical IDOR in Comet Backup Enables Tenant Admin Impersonation
Type Values Removed Values Added
Description A critical IDOR vulnerability has been discovered in Comet Backup affecting all versions from 20.11.0 to 26.1.1 and 26.2.1. The vulnerability allows a tenant administrator to impersonate any end-user account of other tenants on the same server via a vulnerable API call.
Weaknesses CWE-639
References
Metrics cvssV4_0

{'score': 9.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
May 4, 2026, 7:44 PM
Reserved
Mar 4, 2026, 3:00 PM
Status
Awaiting Analysis
Published
May 4, 2026, 7:16 AM
Modified
Oct 26, 2026, 7:10 PM