{"affected":[{"defaultStatus":"unaffected","product":"openemr","source":"CNA: VulnCheck","vendor":"openemr","versions":[{"lessThan":"8.3.0","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"8.3.0","versionType":"semver"}]}],"cveId":"CVE-2026-126322","cwes":["CWE-502"],"description":"OpenEMR before 8.3.0 contains an unsanitized deserialization vulnerability that allows authenticated attackers to control patient-matching criteria by supplying a crafted serialized key parameter. Attackers can send serialized arrays to interface/orders/patient_match_dialog.php to enumerate patients or force matches that associate lab orders with the wrong patient.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.6,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":8.1,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},{"score":8.6,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":8.1,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}],"modifiedAt":1794565058670,"publishedAt":1794562570583,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/openemr/openemr/security/advisories/GHSA-r52j-mq9p-mh85"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/openemr-before-8.3.0-unsanitized-deserialization-via-patient-match-dialog-php"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/openemr/openemr/security/advisories/GHSA-r52j-mq9p-mh85"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/openemr-before-8.3.0-unsanitized-deserialization-via-patient-match-dialog-php"}],"remediation":[],"revision":"92027b36708a87125653d9676f230678ed9be32cc8e7eeb51bd5868dd40a66b3","sources":[{"modifiedAt":1794562570583,"name":"CNA: VulnCheck","retrievedAt":1794564608846,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126322"},{"modifiedAt":1794565058670,"name":"NVD","retrievedAt":1794572189978,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126322"}],"ssvc":null,"status":"published","title":"OpenEMR before 8.3.0 Unsanitized Deserialization via patient_match_dialog.php","updatedAt":1794572189978}