CVE-2026-33321: OpenEMR has Out-of-Band Server-Side Request Forgery (OOB SSRF)
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0.2, users with the Notes - my encounters role can fill Eye Exam forms in patient encounters. The answers to the form can be printed out in PDF form. An Out-of-Band Server-Side Request Forgery (OOB SSRF) vulnerability was identified in the PDF creation function where the form answers are parsed as unescaped HTML, allowing an attacker to forge requests from the server made to external or internal resources. Version 8.0.0.2 fixes the issue.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-33321?
CVE-2026-33321 has a high severity rating due to its potential for Out-of-Band Server-Side Request Forgery (OOB SSRF) which could lead to unauthorized access to sensitive information.
How do I fix CVE-2026-33321?
To fix CVE-2026-33321, users should upgrade to OpenEMR version 8.0.0.2 or later to mitigate the vulnerability.
Who is affected by CVE-2026-33321?
CVE-2026-33321 affects users with the 'Notes - my encounters' role in OpenEMR versions prior to 8.0.0.2.
What type of vulnerability is CVE-2026-33321?
CVE-2026-33321 is categorized as an Out-of-Band Server-Side Request Forgery (OOB SSRF) vulnerability.
What could be the impact of CVE-2026-33321?
The impact of CVE-2026-33321 could include unauthorized access to backend services, potentially exposing sensitive patient data.