SB2026050448 - Multiple vulnerabilities in FHIR
Published: May 4, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-34360)
CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)
CVSSv4: 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/E:P/U:Green
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.
2) Insufficiently protected credentials (CVE-ID: CVE-2026-34361)
CWE-ID: CWE-522 - Insufficiently Protected Credentials
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Amber
The vulnerability allows a remote attacker to gain access to sensitive information on the system.
The vulnerability exists due to insufficiently protected credentials in the /loadIG endpoint. A remote attacker can steal authentication tokens configured for legitimate FHIR servers.
3) Origin validation error (CVE-ID: CVE-2026-34359)
CWE-ID: CWE-346 - Origin Validation Error
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Amber
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper URL prefix matching on HTTP redirect in HAPI FHIR core. A remote attacker can gain access to sensitive information on the system or modify data.
Remediation
Install update from vendor's website.