{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-85238", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "state": "PUBLISHED", "assignerShortName": "CIRCL", "dateReserved": "2026-09-03T15:29:58.290Z", "datePublished": "2026-09-03T15:30:42.478Z", "dateUpdated": "2026-09-03T15:43:12.832Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "misp", "repo": "https://github.com/MISP/MISP/", "vendor": "misp", "versions": [{"lessThanOrEqual": "2.5.45", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "remediation developer", "value": "Andras Iklody"}, {"lang": "en", "type": "finder", "value": "Scottish Government - National Cyber Team"}, {"lang": "en", "type": "finder", "value": "Peter James"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>MISP contains a session fixation vulnerability in the <strong>CustomAuth authentication (a custom configuration) flow</strong>. 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