CVE-2026-29200

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.

Score

CVSS 4.0 9.9 Critical

Status

Awaiting Analysis - support@hackerone.com

Published

2026-05-04

Last modified

2026-10-26

Weaknesses

CWE-639

Affected products

• Comet Backup (Webpros)

References

• https://support.cometbackup.com/hc/en-us/articles/40090945484823--CVE-2026-29200-%D0%A1ritical-IDOR-vulnerability-in-Co…