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CVE

CVE-2026-25476

OpenEMR has Session Timeout Bypass via skip_timeout_reset
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CVE

CVE-2026-25476

OpenEMR has Session Timeout Bypass via skip_timeout_reset

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 skiptimeoutreset is not present in the request. When skiptimeoutreset=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 skiptimeoutreset=1 to avoid being logged out. Version 8.0.0 fixes the issue.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25476.json, https://github.com/openemr/openemr/security/advisories/GHSA-gx7q-6fhr-5h33, https://nvd.nist.gov/vuln/detail/CVE-2026-25476, https://github.com/openemr/openemr/commit/02a6a7793402b10356a94626d78e0e1069e92a77

Severity

7.5

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.5
EPSS Probability
0.00191%
EPSS Percentile
0.40568%
Introduced Version
0
Fix Available
b91b73600327acb46252b9fce7d04467eea126fd

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