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CVE-2026-103019— OpenEMR: Unauthenticated Open Redirect via OIDC End Session Endpoint

Quick assessment

Affected

openemr openemr

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenEMR 是一款免费且开源的电子健康记录及医疗诊所管理应用程序。在 8.3.0 版本之前，src/RestControllers/AuthorizationController.php 中的 userSessionLogout() 函数在调用 decodeToken() 处理 id_token_hint 时，未验证其签名；当所引用的受信任会话不存在时，该函数会在将其与客户端注册的重定向 URI 进行验证之前，直接重定向到调用方提供的 post_logout_redirect_uri。未认证的攻击者可构造一个登

CVSS 4.3 · Medium Updated Nov 06, 2026

Possible ATT&CK Techniques 3 AI

T1566.002 · Spearphishing Link T1566.001 · Spearphishing Attachment T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

OpenEMR: Unauthenticated Open Redirect via OIDC End Session Endpoint

Source: CVE Program / CVE List V5

Vulnerability Description

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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

指向未可信站点的URL重定向(开放重定向)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
openemr	openemr	< 8.3.0	-

II. Public POCs for CVE-2026-103019

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-103019

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Vendor Pages for CVE-2026-103019 (1)

🔗 Release OpenEMR 8.3.0 · openemr/openemr · GitHub Read full article x_refsource_MISC

Other References for CVE-2026-103019 (3)

https://github.com/openemr/openemr/pull/13133 x_refsource_MISC
https://github.com/openemr/openemr/security/advisories/GHSA-5h9g-m7q2-pv45 x_refsource_CONFIRM
https://github.com/openemr/openemr/commit/50f789fad45ada625fe8d0faf0c7a9c15ef52aa5 x_refsource_MISC

https://www.cve.org/CVERecord?id=CVE-2026-103019

Same Patch Batch · openemr · 2026-11-05 · 16 CVEs total

CVE-2026-102940	9.6 CRITICAL	OpenEMR: Missing Write ACL Allows Unauthorized Document Reassignment
CVE-2026-103935	8.1 HIGH	OpenEMR: Stored XSS via `text()` Misuse in Double-Quoted HTML Attribute
CVE-2026-115573	8.1 HIGH	OpenEMR: Broken Access Control in controller.php Enables Insurance Routing Credential Hija
CVE-2026-65983	7.5 HIGH	OpenEMR FaxSMS module: insecure staging of decrypted patient documents in webroot
CVE-2026-103938	7.1 HIGH	OpenEMR: CSRF Protection Bypass on IPPF Point-of-Sale Void and Regen Operations
CVE-2026-104137	7.1 HIGH	OpenEMR: Patient Data Search Without Sufficient ACL
CVE-2026-104136	7.1 HIGH	OpenEMR: Arbitrary Patient Recall and Contact Detail Read
CVE-2026-104133	7.1 HIGH	OpenEMR: Missing authorization in DORN `compendium_install.php` — non-admin destructive la
CVE-2026-104138	6.5 MEDIUM	OpenEMR: Missing authorization on QRDA Category I/III download endpoints
CVE-2026-104135	6.5 MEDIUM	OpenEMR: Missing authorization in payment patient-search AJAX leaks patient directory and
CVE-2026-104139	6.5 MEDIUM	OpenEMR: Missing Authorization on Document Template Download Endpoint Allows Any Authentic
CVE-2026-104134	6.5 MEDIUM	OpenEMR: Missing authorization in person-search AJAX leaks patient demographics (name, DOB
CVE-2026-103939	5.4 MEDIUM	OpenEMR: Weno `file_download.php`: missing ACL/CSRF truncates the e-prescribing pharmacy d
CVE-2026-103021	5.3 MEDIUM	OpenEMR: Username Enumeration via Pre-Authentication User Settings Loading
CVE-2026-103020	5.3 MEDIUM	OpenEMR: Unauthenticated Information Disclosure in admin.php Exposes Database Names and Ve

IV. Related Vulnerabilities

Same product: openemr

Same vendor: openemr

Same weakness: CWE-601