CVE-2026-66091

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    CVE-2026-66091

    Published: 29 Oct 2026Last Modified: 31 Oct 2026

    Summary:

    Details: 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.

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

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -25e9002452cf7d18ec96500cdfdb433126e70cac

    Affected versions

    2025.2.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-66091 | CVE-DB