What is CVE-2026-49120?

CVE-2026-49120 is a high-severity vulnerability in Medplum, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2026-06-02.

How severe is CVE-2026-49120?

High severity. CVSS v3 base score is 8.5 out of 10.

SSRF in Medplum

CVE-2026-49120

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…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.000 (8.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.

Affected products

Medplum — versions 0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

disclosure@vulncheck.com (release-notes)
disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-49120?: CVE-2026-49120 is a high-severity vulnerability in Medplum, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2026-06-02.
How severe is CVE-2026-49120?: High severity. CVSS v3 base score is 8.5 out of 10.