CVE-2026-49120 PUBLISHED

Medplum < 5.1.14 SSRF via FHIR Subscription Endpoint

Assigner: VulnCheck
Reserved: 27.05.2026 Published: 02.06.2026 Updated: 03.06.2026

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.

Metrics

CVSS Vector: 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
CVSS Score: 6.3

Product Status

Vendor medplum
Product medplum
Versions Default: affected
  • affected from 0 to 5.1.14 (excl.)

Credits

  • Katriel Moses finder
  • VulnCheck finder

References

Problem Types

  • Server-Side Request Forgery (SSRF) CWE