CVE-2026-49120
Medplum < 5.1.14 SSRF via FHIR Subscription Endpoint
- State
- Published
- Severity
- 6.3 Medium
- Published
- Jun 2, 2026
- Updated
- Jul 14, 2026
- Reserved
- May 27, 2026
Description
Medplum before 5.1.14 contains a server-side request forgery vulnerability in the subscription worker that allows authenticated users to perform unauthorized internal network requests by creating FHIR Subscription resources with arbitrary endpoint URLs. Attackers can point subscription endpoints at internal addresses such as cloud instance metadata services, internal databases, or container orchestration endpoints to exfiltrate IAM credentials and patient health records via the POST body containing full FHIR resource payloads.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N | VulnCheck |
| 3.1 | 8.5 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
medplummedplum |
|
References
- https://github.com/medplum/medplum/releases/tag/v5.1.14release-notes
- https://github.com/medplum/medplum/pull/9334issue-tracking
- https://github.com/medplum/medplum/commit/87595e98d756d840d70d9dc87beb9d4f9e158b59patch
- https://www.vulncheck.com/advisories/medplum-ssrf-via-fhir-subscription-endpointthird-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.