CVE-2026-105860

Payload: Tenant authorization bypass in Multi-Tenant Plugin

HIGH
7.1
CVSS Score
Published: October 6, 2026 at 04:33 PM UTC
Updated: October 15, 2026 at 12:10 AM UTC
1 product affected across 1 vendorPayload

Using payload by payloadcms?

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (3)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHGitHub_M
Vector?

Quick Info

StatusANALYZED
CWE
CWE-862

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