CVE
CVE-2026-105863
Payload authentication token field handling issue
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.
Package Versions Affected
Package Version
patch Availability
No items found.
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CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.2
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4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
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C
H
U
-
Related Resources
No items found.
References
https://github.com/payloadcms/payload/releases/tag/v3.90.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105863.json, https://github.com/payloadcms/payload/security/advisories/GHSA-66wr-7vmr-p5jq, https://nvd.nist.gov/vuln/detail/CVE-2026-105863, https://github.com/payloadcms/payload/commit/56cd5cd050a57daebf33159e41e5ff9d4a45239c