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CVE-2026-105852— Payload relationship-query authorization bypass

Quick assessment

Affected
payloadcms payload
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Payload 是一个免费且开源的无头内容管理系统（Headless CMS）。在 3.90.0 之前的版本，以及 4.0.0-canary.34 之前的 canary 版本中，当通过关系字段查询一个可读集合（collection）时，可能会泄露受 access.read 权限约束保护的关联文档信息。该问题已在版本 3.90.0 和 4.0.0-canary.34 中得到修复。

CVSS 6.9 · Medium
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I. Basic Information for CVE-2026-105852

Vulnerability Information
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Vulnerability Title
Payload relationship-query authorization bypass
Source: CVE Program / CVE List V5
Vulnerability Description
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, querying a readable collection with a relationship to another collection can expose information about related documents protected by access.read where constraints. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
payloadcms payload < 3.90.0 -

II. Public POCs for CVE-2026-105852

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III. Intelligence Information for CVE-2026-105852

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Other References for CVE-2026-105852 (3)

Same Patch Batch · payloadcms · 2026-10-06 · 21 CVEs total

CVE-2026-105857 10.0 CRITICAL Payload: RCE in Payload Form Builder
CVE-2026-105845 9.8 CRITICAL Payload: SQL Injection in SQLite and Postgres
CVE-2026-105859 9.8 CRITICAL Payload: Unauthorized update to collection documents
CVE-2026-105844 9.3 CRITICAL Payload: Prototype pollution in Payload Import Export plugin
CVE-2026-105851 9.3 CRITICAL Payload: Field access control bypass on auth collections
CVE-2026-105850 8.8 HIGH Payload: Order confirmation validation issue in Payload Ecommerce
CVE-2026-105854 8.7 HIGH Payload: ReDoS in Multipart Content-Type Validation
CVE-2026-105856 8.6 HIGH Payload: SQL injection in SQLite/Postgres
CVE-2026-105806 8.6 HIGH Payload: Improper access control for MCP API keys
CVE-2026-105858 8.1 HIGH Payload: Remote Code Execution through first-register
CVE-2026-105849 7.7 HIGH Payload: API key disclosure through ordinary document reads
CVE-2026-105855 7.6 HIGH Payload: Field-level password update restrictions were not enforced
CVE-2026-105861 7.2 HIGH Payload external upload trust validation issue
CVE-2026-105847 7.1 HIGH Payload: Polymorphic join queries could disclose hidden fields
CVE-2026-105860 7.1 HIGH Payload: Tenant authorization bypass in Multi-Tenant Plugin
CVE-2026-105853 7.1 HIGH Payload: Token refresh and password reset responses may expose restricted user fields
CVE-2026-105805 6.9 MEDIUM Payload: Sort queries could expose protected field information
CVE-2026-105848 6.4 MEDIUM Payload: Insufficient Access Control in Stripe REST Proxy
CVE-2026-105846 6.1 MEDIUM Payload: Untrusted redirect URL parameter exploit
CVE-2026-105804 5.7 MEDIUM Payload: Password hashes use insufficient PBKDF2 iterations

IV. Related Vulnerabilities

Same product: payload
Same vendor: payloadcms
Same weakness: CWE-862

V. Comments for CVE-2026-105852

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