GitHub Advisoryadvisory · npm
GHSA-66wr-7vmr-p5jq Payload authentication token field handling issue
CRITICAL
Official page ↗
- Aliases
- CVE-2026-105863
- Ecosystem
- npm
- Packages
- payload
- Severity
- Critical
- CVSS vector
- 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
- Weaknesses
- CWE-290, CWE-915
- Reviewed
- 2026-10-07
Affected packages
• npm payload: >= 3.0.0, < 3.90.0 → fixed in 3.90.0
• npm payload: >= 4.0.0-canary.0, < 4.0.0-canary.34 → fixed in 4.0.0-canary.34
Description
Impact
Under certain field configurations, Payload could include unintended values in the authentication token issued at login.
You are affected if:
• You use an affected Payload version and have configured a custom field option that maps a field to a reserved authentication claim name.
Patches
Payload now restricts which field configuration options can influence the contents of the authentication token.
Users should upgrade payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`.
Workarounds
There is no complete workaround. Users should upgrade payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`.
Related
Alias · CVE (1)
- CVE-2026-105863 Payload is a free and open source headless content management system. vulnerability
References
- https://github.com/payloadcms/payload/security/advisories/GHSA-66wr-7vmr-p5jq web
- https://nvd.nist.gov/vuln/detail/CVE-2026-105863 advisory
- https://github.com/payloadcms/payload/commit/56cd5cd050a57daebf33159e41e5ff9d4a45239c web
- https://github.com/payloadcms/payload package
- https://github.com/payloadcms/payload/releases/tag/v3.90.0 web