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Vulnerabilities

Vulnerability · 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.

Published May 4, 2026 · catalog updated Jun 17, 2026 · A critical IDOR vulnerability

Check if you run it

No confirmed exploitation is on record for CVE-2026-29200. EPSS is 0.46%. Act only if a listed version of A critical IDOR vulnerability is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A critical IDOR vulnerability).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.46%
Remediation
Not established
Affected products
See sources for product scope

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.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-29200

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-29200. EPSS is 0.46%. Act only if a listed version of A critical IDOR vulnerability is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-639: Authorization Bypass Through User-Controlled Key. EPSS 0.46%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 4, 2026 · NIST NVD

    Detected

    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.

  2. Jun 17, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-29200

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-29200

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.