Critical severityNVD Advisory· Published May 4, 2026· Updated Jun 17, 2026

CVE-2026-29200

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.

Affected products

Comet Backup/Comet Backup serverllm-fuzzy
Range: 20.11.0 - 26.1.1, 26.2.1

Patches

Vulnerability mechanics

References

support.cometbackup.com/hc/en-us/articles/40090945484823--CVE-2026-29200-%D0%A1ritical-IDOR-vulnerability-in-Comet-Backupnvd

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