Payload is a free and open source headless content management system. In @payloadcms/plugin-multi-tenant versions before 3.90.0 and canary versions before 4.0.0-canary.34, the default tenant array field access allows an authenticated user to assign the user's own account to other tenants. Deployments that replace the default behavior with secured tenants arrayFieldAccess.create and tenants arrayFieldAccess.update functions are not affected by this behavior. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
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Fixes

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History

Tue, 06 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 06 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
Description Payload is a free and open source headless content management system. In @payloadcms/plugin-multi-tenant versions before 3.90.0 and canary versions before 4.0.0-canary.34, the default tenant array field access allows an authenticated user to assign the user's own account to other tenants. Deployments that replace the default behavior with secured tenants arrayFieldAccess.create and tenants arrayFieldAccess.update functions are not affected by this behavior. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
Title Payload: Tenant authorization bypass in Multi-Tenant Plugin
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-06T17:15:03.137Z

Reserved: 2026-10-05T23:06:29.748Z

Link: CVE-2026-105860

cve-icon Vulnrichment

Updated: 2026-10-06T17:14:35.368Z

cve-icon NVD

Status : Received

Published: 2026-10-06T17:17:22.133

Modified: 2026-10-06T18:16:49.440

Link: CVE-2026-105860

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-06T18:30:05Z

Weaknesses