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7.5
HIGH CVSS 3.1
CVE-2026-25476
OpenEMR has Session Timeout Bypass via skip_timeout_reset
Description

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.

INFO

Published Date :

Feb. 25, 2026, 7:43 p.m.

Last Modified :

Feb. 28, 2026, 12:42 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2026-25476 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Open-emr openemr
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
Solution
Update OpenEMR to version 8.0.0 or later to fix session expiration bypass.
  • Update OpenEMR to version 8.0.0.
  • Apply any available security patches.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-25476.

URL Resource
https://github.com/openemr/openemr/commit/02a6a7793402b10356a94626d78e0e1069e92a77 Patch
https://github.com/openemr/openemr/security/advisories/GHSA-gx7q-6fhr-5h33 Exploit Vendor Advisory
https://github.com/openemr/openemr/security/advisories/GHSA-gx7q-6fhr-5h33 Exploit Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-25476 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-25476 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-25476 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-25476 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Feb. 28, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:* versions up to (excluding) 8.0.0
    Added Reference Type GitHub, Inc.: https://github.com/openemr/openemr/commit/02a6a7793402b10356a94626d78e0e1069e92a77 Types: Patch
    Added Reference Type CISA-ADP: https://github.com/openemr/openemr/security/advisories/GHSA-gx7q-6fhr-5h33 Types: Exploit, Vendor Advisory
    Added Reference Type GitHub, Inc.: https://github.com/openemr/openemr/security/advisories/GHSA-gx7q-6fhr-5h33 Types: Exploit, Vendor Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Feb. 26, 2026

    Action Type Old Value New Value
    Added Reference https://github.com/openemr/openemr/security/advisories/GHSA-gx7q-6fhr-5h33
  • New CVE Received by [email protected]

    Feb. 25, 2026

    Action Type Old Value New Value
    Added Description 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.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Added CWE CWE-613
    Added Reference https://github.com/openemr/openemr/commit/02a6a7793402b10356a94626d78e0e1069e92a77
    Added Reference https://github.com/openemr/openemr/security/advisories/GHSA-gx7q-6fhr-5h33
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact