GitHub Advisoryadvisory · npm

GHSA-66wr-7vmr-p5jq Payload authentication token field handling issue

CRITICAL Published 2026-10-07 Modified 2026-10-07 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

Weakness · CWE (2)

  • CWE-290 Authentication Bypass by Spoofing weakness
  • CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes weakness

References