CVE-2026-66091 (GCVE-0-2026-66091)

Vulnerability from cvelistv5 – Published: 2026-10-29 01:38 – Updated: 2026-10-29 02:02
VLAI
Title
Unauthenticated IDOR Enables Disclosure of Other Users’ last-known details
Summary
In openEQUELLA before 2026.1, the GET /api/userquery/userinfobackup endpoint performs no authentication or authorisation check. An unauthenticated attacker who supplies another user's uniqueId can retrieve that user's stored personal details (username, first name, last name and email address) within the same institution.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 01:50 UTC
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
Assigner
MON-CSIRT CNA under the mitre root
CNA scorecard – unranked: 8 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
Apereo Foundation openEQUELLA Affected: 2019.2 , < 2026.1 (custom)
guessed Create a notification for this product.
Credits
dr0v3r
Show details on NVD website
To clipboard 

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