by Kastro
Paper/Archive/CVE-2026-124445

CVE-2026-124445

openemr openemr — OpenEMR 7.0.1 before 8.4.0 OneTimeAuth Token Replay and PIN Brute Force

CVSS 9.8
critical.is priorityof 100
29
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0No EPSS score.000 × 200.0No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

OpenEMR from 7.0.1 before 8.4.0 contains a flaw in src/Common/Auth/OneTimeAuth.php that ignores the enforce_onetime_use and max_access_count flags, never revokes consumed service_auth tokens, and checks login_pin without rate limiting or strict comparison. Attackers holding a captured token can replay it or brute-force the PIN to open patient-portal sessions exposing PHI.

Affected

ProductAffectedFixed inSource
openemr7.0.1 – < 8.4.08.4.0CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

advisorygithub.com/openemr/openemr/security/advisories/GHSA-xg3m-9pfq-c8r6writeupvulncheck.com/advisories/openemr-7.0.1-before-8.4.0-onetimeauth-token-replay-and-pin-brute-force