CVE-2026-66091

CVSS 6.9 (medium) · published 2026-10-29

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.

Weakness: CWE-639

Source: NVD CVE-2026-66091

References

• https://github.com/openequella/openEQUELLA/security/advisories/GHSA-mxj9-pmpw-j4xw
• https://openequella.github.io/guides/

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