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CVE-2026-126427 OpenEMR before 8.5.0 Idle Session Timeout Bypass via Eye Exam Form

4.3 mediumEPSS 0.2%

Medium (4.3) in openemr openemr. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.

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OpenEMR before 8.5.0 contains a session expiration vulnerability that prevents automatic logoff because the Eye Exam form's read-only poll omits skip_timeout_reset. Attackers with physical access to an unattended workstation can use the still-active session to view patient health information, since update_READONLY() resets the idle timer every 15 seconds.

Severity

CVSS 4.0

4.3 medium
CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

4.6 medium
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
EPSS
0.2% estimated probability of exploitation activity in the next 30 days; 5th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-613 Insufficient Session Expiration deprecated by MITRE see CWE-1463, CWE-1464
OWASP Top 10
A07:2025 Authentication Failures
Published
Modified
Assigned by
VulnCheck (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
openemrbefore 8.5.0

References

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