PT-2026-21977 · Openemr · Openemr

Simecek · Published 2026-02-25 · Updated 2026-02-26 · CVE-2026-25476

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions OpenEMR versions prior to 8.0.0

Description OpenEMR is an electronic health records and medical practice management application. Prior to version 8.0.0, the session expiration check within the library/auth.inc.php file could be bypassed. Specifically, when the skip timeout reset parameter is set to '1' in a request, the session expiration check, including the call to the SessionTracker::isSessionExpired() function, is skipped. This allows expired sessions to remain active, potentially enabling an attacker with a stolen session cookie to maintain access indefinitely by continuously including the skip timeout reset=1 parameter in their requests.

Recommendations Update to version 8.0.0 or later.

Exploit

Fix

Insufficient Session Expiration

Weakness Enumeration

CWE-613

Related Identifiers

CVE-2026-25476

GHSA-GX7Q-6FHR-5H33

Affected Products

Openemr

References · 6

• 🔥 https://github.com/openemr/openemr/security/advisories/GHSA-gx7q-6fhr-5h33 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25476.json · Exploit
• https://github.com/openemr/openemr/commit/02a6a7793402b10356a94626d78e0e1069e92a77 · Patch
• https://osv.dev/vulnerability/CVE-2026-25476 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-25476 · Security Note
• https://twitter.com/CVEnew/status/2027099304817828071 · Twitter Post