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.

CVSS 4.0

9.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.4CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

EPSS

0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-25)

CWEs

CWE-290, CWE-915

Published

2026-10-06

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• payloadcms:payload

Packages (OSV)

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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