CVE-2026-103019

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    CVE-2026-103019

    Published: 5 Nov 2026Last Modified: 8 Nov 2026

    Summary: OpenEMR: Unauthenticated Open Redirect via OIDC End Session Endpoint

    Details: OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, userSessionLogout() in src/RestControllers/AuthorizationController.php uses decodeToken() to process an id_token_hint without verifying its signature and, when the referenced trusted session is absent, redirects to the caller-supplied post_logout_redirect_uri before validating it against the client's registered redirect URIs. An unauthenticated attacker can craft a logout link that sends a user to an arbitrary external site and invalidates the user's session, enabling convincing phishing flows from the legitimate logout endpoint. The endpoint is reachable when the OpenEMR REST API is enabled. This issue is fixed in version 8.3.0.

    References: https://github.com/openemr/openemr/releases/tag/v8_3_0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103019.json, https://github.com/openemr/openemr/security/advisories/GHSA-5h9g-m7q2-pv45, https://nvd.nist.gov/vuln/detail/CVE-2026-103019, https://github.com/openemr/openemr/commit/50f789fad45ada625fe8d0faf0c7a9c15ef52aa5, https://github.com/openemr/openemr/pull/13133

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -ebb62eb3036a726314ab3e1c3e9263a41608b17b

    Affected versions

    v3_0_1

    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-2026-103019 | CVE-DB