CVE-2026-121543

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    CVE-2026-121543

    Published: 3 Nov 2026Last Modified: 5 Nov 2026

    Summary: smart-sso through 2.0.1 Incorrect Authorization in PermissionFilter Enables Admin Escalation

    Details: smart-sso through 2.0.1 contains an incorrect authorization vulnerability in PermissionFilter that allows any authenticated user to call admin console APIs because unlisted paths are permitted by default. Attackers can call /admin/user-role/save to assign themselves the administrator role, reset passwords, and manage users, roles, and applications across integrated systems.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121543.json, https://nvd.nist.gov/vuln/detail/CVE-2026-121543, https://www.vulncheck.com/advisories/smart-sso-through-2.0.1-incorrect-authorization-in-permissionfilter-enables-admin-escalation, https://github.com/a466350665/smart-sso/issues/79, https://github.com/a466350665/smart-sso/commit/9bccabaa5ec5, https://github.com/a466350665/smart-sso/commit/a74a791bea7fc7b06ce95f52ce5805d8d7886d48, https://github.com/a466350665/smart-sso, https://github.com/a466350665/smart-sso/blob/91d2dfef8973d308fa1b762e4c86dfbcbe9793ff/smart-sso-server/src/main/java/openjoe/smart/sso/server/controller/admin/UserRoleController.java, https://github.com/a466350665/smart-sso/blob/91d2dfef8973d308fa1b762e4c86dfbcbe9793ff/smart-sso-starter/smart-sso-starter-client/src/main/java/openjoe/smart/sso/client/filter/PermissionFilter.java#L38-L47

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -9bccabaa5ec5

    Affected versions

    1.6.0

    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-2026-121543 | CVE-DB