{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-9136", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "state": "PUBLISHED", "assignerShortName": "CIRCL", "dateReserved": "2026-05-20T18:38:29.235Z", "datePublished": "2026-05-20T18:39:40.231Z", "dateUpdated": "2026-05-20T19:27:31.091Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-05-20T18:39:40.231Z"}, "title": "Unauthorized ShadowAttribute modification in MISP via client-supplied identifier", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-639", "description": "CWE-639 Authorization Bypass Through User-Controlled Key", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-115", "descriptions": [{"lang": "en", "value": "CAPEC-115 Authentication Bypass"}]}], "affected": [{"vendor": "misp", "product": "misp", "versions": [{"status": "affected", "version": "2.5.0", "lessThanOrEqual": "2.5.37", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A vulnerability was identified in the ShadowAttribute proposal creation workflow. 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