Vulnerability in Open-Emr Openemr
CVE-2026-25476
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, the session expiration check in `library/auth.inc.php` runs only when `skip_timeout_reset` is not present in the request. When `skip_timeout_reset=1` is sent, the entire block that calls `SessionTracker::isSessionExpired()` and forces logout on timeout is skipped. As a result, any request that includes this parameter (e.g. from auto-refresh pages like the Patient Flow Board) never runs the expiration check: expired sessions can continue to access data indefinitely, abandoned workstations stay active, and an attacker with a stolen session cookie can keep sending `skip_timeout_reset=1` to avoid being logged out. Version 8.0.0 fixes the issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Open-Emr Openemr
- Openemr — versions < 8.0.0
Weakness classification (CWE)
References
- github.com/openemr/openemr/security/advisories/GHSA-gx7q-6fhr-5h33 (Exploit, Vendor Advisory)
- github.com/openemr/openemr/commit/02a6a7793402b10356a94626d78e0e1069e92a77 (Patch)
Frequently asked questions
- What is CVE-2026-25476?
- CVE-2026-25476 is a high-severity vulnerability in Open-Emr Openemr, classified under Insufficient Session Expiration. CVSS score: 7.5/10. Published 2026-02-25.
- How severe is CVE-2026-25476?
- High severity. CVSS v3 base score is 7.5 out of 10.