---
id: CVE-2026-105868
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, local
  upload configurations that accept XML files can store an XML file and
  stylesheet that execu…
severity: high
cvss: 8.6
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-434
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: '2026-10-06T17:17:23.283'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105868'
references:
  - url: >-
      https://github.com/payloadcms/payload/commit/a8c3a8e8e2680c96ec4f66f5b3854c5df6c35adf
    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-9qpg-3cf8-w33x
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-06T17:09:22.187Z'
---

## 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, local upload configurations that accept XML files can store an XML file and stylesheet that execute JavaScript in the Payload origin when a logged-in user opens the file. 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.