Server-Side Request Forgery (SSRF) in FHIR - CVE-2026-34360
Published: May 4, 2026
Vulnerability identifier: #VU129394
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N]
CVE-ID: CVE-2026-34360
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input in the /loadIG HTTP endpoint. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.
Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.
Affected software
FHIR
How to mitigate CVE-2026-34360
Install updates from vendor's website.
FHIR - update to 6.9.4