{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-105858", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-05T23:06:29.748Z", "datePublished": "2026-10-06T16:29:52.420Z", "dateUpdated": "2026-10-06T16:29:52.420Z"}, "containers": {"cna": {"title": "Payload: Remote Code Execution through first-register", "problemTypes": [{"descriptions": [{"cweId": "CWE-94", "lang": "en", "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-1321", "lang": "en", "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/payloadcms/payload/security/advisories/GHSA-97rh-rhh2-7vjv", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/payloadcms/payload/security/advisories/GHSA-97rh-rhh2-7vjv"}, {"name": "https://github.com/payloadcms/payload/commit/e947fc4ba4a434f276d043386e501b1d14eda679", "tags": ["x_refsource_MISC"], "url": "https://github.com/payloadcms/payload/commit/e947fc4ba4a434f276d043386e501b1d14eda679"}, {"name": "https://github.com/payloadcms/payload/releases/tag/v3.90.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/payloadcms/payload/releases/tag/v3.90.0"}], "affected": [{"vendor": "payloadcms", "product": "payload", "versions": [{"version": "< 3.90.0", "status": "affected"}, {"version": ">= 4.0.0-canary.0, < 4.0.0-canary.34", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-06T16:29:52.420Z"}, "descriptions": [{"lang": "en", "value": "Payload is a free and open source headless content management system. In versions before 3.90.0 and canary versions before 4.0.0-canary.34, a crafted request to the public first-register operation can execute code remotely when local authentication is enabled and no initial user has been created. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34."}], "source": {"advisory": "GHSA-97rh-rhh2-7vjv", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "payload", "vendor": "payloadcms", "versions": [{"status": "affected", "version": "< 3.90.0"}, {"status": "affected", "version": ">= 4.0.0-canary.0, < 4.0.0-canary.34"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Payload is a free and open source headless content management system. In versions before 3.90.0 and canary versions before 4.0.0-canary.34, a crafted request to the public first-register operation can execute code remotely when local authentication is enabled and no initial user has been created. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34."}], "id": "CVE-2026-105858", "lastModified": "2026-10-06T17:17:21.847", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-10-06T17:17:21.847", "references": [{"source": "[email protected]", "url": "https://github.com/payloadcms/payload/commit/e947fc4ba4a434f276d043386e501b1d14eda679"}, {"source": "[email protected]", "url": "https://github.com/payloadcms/payload/releases/tag/v3.90.0"}, {"source": "[email protected]", "url": "https://github.com/payloadcms/payload/security/advisories/GHSA-97rh-rhh2-7vjv"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}, {"lang": "en", "value": "CWE-1321"}], "source": "[email protected]", "type": "Primary"}]}

{}

{}