QwikSec

Security Database

CVE

CWE

Training

CVE-2026-49120

Published: Jun 2, 2026

Modified: Jun 3, 2026

PUBLISHED

CVSS v3.1

8.5

HIGH

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.

Vendor	Product	Versions
medplum	medplum	affected `0 - < 5.1.14`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

References

https://github.com/medplum/medplum/releases/tag/v5.1.14

release-notes

https://github.com/medplum/medplum/pull/9334

issue-tracking

https://github.com/medplum/medplum/commit/87595e98d756d840d70d9dc87beb9d4f9e158b59

patch

https://www.vulncheck.com/advisories/medplum-ssrf-via-fhir-subscription-endpoint

third-party-advisory

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.