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.
References (4)
Core 4
Core References
Release Notes release-notes
https://github.com/medplum/medplum/releases/tag/v5.1.14
Issue Tracking issue-tracking
https://github.com/medplum/medplum/pull/9334
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/medplum-ssrf-via-fhir-subscription-endpoint
Scores
CVSS v3
8.5
EPSS
0.0023
EPSS Percentile
13.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-918
Status
published
Products (1)
medplum/medplum
< 5.1.14
Published
Jun 02, 2026
Tracked Since
Jun 03, 2026