{"id":"CVE-2026-105863","published":"2026-10-06T17:17:22.570","lastModified":"2026-10-09T02:16:56.387","description":"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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-290","CWE-915"],"vendors":[],"products":[],"references":[{"url":"https://github.com/payloadcms/payload/commit/56cd5cd050a57daebf33159e41e5ff9d4a45239c","tags":[]},{"url":"https://github.com/payloadcms/payload/releases/tag/v3.90.0","tags":[]},{"url":"https://github.com/payloadcms/payload/security/advisories/GHSA-66wr-7vmr-p5jq","tags":[]}],"exploitRefs":[{"url":"https://github.com/payloadcms/payload/commit/56cd5cd050a57daebf33159e41e5ff9d4a45239c","tags":[]},{"url":"https://github.com/payloadcms/payload/releases/tag/v3.90.0","tags":[]},{"url":"https://github.com/payloadcms/payload/security/advisories/GHSA-66wr-7vmr-p5jq","tags":[]}],"hasPoc":true,"ai":null}