Vulnerability Details CVE-2026-105863
Payload is a free and open source headless content management system. In versions after 3.0.0 and before 3.90.0, a custom field option that maps a field to a reserved authentication claim name can place unintended values in the authentication token issued at login. This issue is fixed in version 3.90.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 29.9%
CVSS Severity
CVSS v3 Score 9.4
References
Products affected by CVE-2026-105863
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cpe:2.3:a:payloadcms:payload:4.0.0