CVE-2026-105863: payloadcms payload

CVSS 9.4 (critical) · published 2026-10-06

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.

Affected products (NVD): payloadcms payload

Fixed in (NVD): 3.90.0

Weakness: CWE-290, CWE-915

Source: NVD CVE-2026-105863

References

• https://github.com/payloadcms/payload/commit/56cd5cd050a57daebf33159e41e5ff9d4a45239c
• https://github.com/payloadcms/payload/releases/tag/v3.90.0
• https://github.com/payloadcms/payload/security/advisories/GHSA-66wr-7vmr-p5jq

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