Out-of-Band Server-Side Request Forgery in OpenEMR by OpenEMR
CVE-2026-33321

7.2HIGH

Key Information:

Vendor

Openemr

Status
Openemr
Vendor
CVE Published:
19 March 2026

What is CVE-2026-33321?

OpenEMR, a free and open-source electronic health records application, is susceptible to an Out-of-Band Server-Side Request Forgery (SSRF) vulnerability. This issue arises from the PDF creation function that improperly handles user input when generating Eye Exam forms. Specifically, the answers logged in the form are rendered as unescaped HTML, enabling an attacker to exploit the system by sending forged requests to both internal and external resources. This vulnerability was addressed in version 8.0.0.2, which mitigates the risks associated with this flaw.

Affected Version(s)

openemr < 8.0.0.2

References

https://github.com/openemr/openemr/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/openemr/openemr/commit/dccc962f06bdf61...
x_refsource_MISC

CVSS V4

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.