What is CVE-2026-124450?

CVE-2026-124450 is a critical-severity vulnerability in Openemr, classified under External Control of File Name or Path. CVSS score: 9.9/10. Published 2026-11-08.

How severe is CVE-2026-124450?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Vulnerability in Openemr

CVE-2026-124450

OpenEMR before 8.3.0 contains a broken access control and path traversal vulnerability in the fax/sms module disposeDocument action via an unvalidated file_path parameter. Authenticated low-privilege users can read sqlconf.php to recover database credentials and write arbitrary files as the web user, enabling remote code execution.

Published 2026-11-08.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Openemr

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

GitHub Security Advisory (GHSA-wf4w-mx2w-j4vv) (vendor-advisory)
VulnCheck Advisory: OpenEMR before 8.3.0 Arbitrary File Read/Write via disposeDocument (third-party-advisory)

Frequently asked questions

What is CVE-2026-124450?: CVE-2026-124450 is a critical-severity vulnerability in Openemr, classified under External Control of File Name or Path. CVSS score: 9.9/10. Published 2026-11-08.
How severe is CVE-2026-124450?: Critical severity. CVSS v3 base score is 9.9 out of 10.