Is there a public exploit for CVE-2026-126442?

No public exploit for CVE-2026-126442 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-126442?

CVE-2026-126442 scores CVSS 8.6 (v4.0), rated high.

What does CVE-2026-126442 affect?

CVE-2026-126442 affects OpenEMR OpenEMR.

8.6 High

OpenEMR before 8.5.0 contains a missing authorization vulnerability in createportallogin.php that allows low-privilege authenticated users…

CVE-2026-126442

OpenEMR before 8.5.0 contains a missing authorization vulnerability in createportallogin.php that allows low-privilege authenticated users to replace patient portal credentials without ACL checks. Attackers can select a victim patient in session and post replacement credentials to take over portal accounts, read PHI, and lock patients out.

Assessment

CVSS: 8.6 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 13 November 2026
Last updated: 13 November 2026
Affected: OpenEMR · OpenEMR
Assigner: VulnCheck

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

At the source

EUVD (ENISA)

References

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