---
id: CVE-2026-105866
title: Payload is a free and open source headless content management system
summary: >-
  Payload is a free and open source headless content management system. In
  versions before 3.90.0 and canary versions before 4.0.0-canary.34, an
  unauthenticated attacker who knows an account email address or username can
  abuse the account …
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'
cwe:
  - CWE-307
  - CWE-645
vendor: payloadcms
product: payload
affected:
  - payload < 3.90.0
  - 'payload >= 4.0.0-canary.0, < 4.0.0-canary.34'
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T18:16:50.063'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105866'
references:
  - url: >-
      https://github.com/payloadcms/payload/commit/1c46204a73a0a9f988a80c52690eee5a4ada3cf1
    label: security-advisories@github.com
  - url: 'https://github.com/payloadcms/payload/releases/tag/v3.90.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/payloadcms/payload/security/advisories/GHSA-v5gf-vpjc-pc7w
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-06T17:34:37.543263Z'
cvssSource: cna
ingestedAt: '2026-10-06T17:09:22.189Z'
---

## Overview

Payload is a free and open source headless content management system. In versions before 3.90.0 and canary versions before 4.0.0-canary.34, an unauthenticated attacker who knows an account email address or username can abuse the account lockout mechanism of a local-authentication collection to prevent that account from signing in. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.