CVE-2026-105852
Received Received - Intake

Payload Exposure in Payload CMS via Relationship Query

Publication date: 2026-10-06

Last updated on: 2026-10-06

Assigner: GitHub, Inc.

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.

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Meta Information

Published
2026-10-06
Last Modified
2026-10-06
Generated
2026-10-06
AI Q&A
2026-10-06
EPSS Evaluated
N/A
NVD
CVE-2026-105852
EUVD
EUVD-2026-93495

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
payloadcms payload < 3.90.0
payloadcms payload >= 4.0.0-canary.0, < 4.0.0-canary.34

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

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Executive Summary

Payload CMS versions before 3.90.0 and canary versions before 4.0.0-canary.34 have an issue where querying a readable collection with a relationship to another collection can expose information about related documents that should be protected by access.read constraints.

Impact Analysis

This vulnerability could allow unauthorized access to sensitive information in related documents that should be restricted. Attackers might exploit it to read data they are not permitted to access.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, potentially violating privacy regulations like GDPR or HIPAA by allowing access to protected information without proper authorization.

Mitigation Strategies

Upgrade Payload CMS to version 3.90.0 or later for the stable release, or to version 4.0.0-canary.34 or later for the canary release to address the vulnerability.

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