CVE-2026-105864
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk9th percentile - higher than 9% of all known CVEs
Summary
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, an authenticated user limited to one tenant can create a record in another tenant when at least one tenant-enabled collection exists. Reads and direct edits of existing documents in the target tenant are not bypassed.
Risk Assessment
A user can inject data into the wrong tenant, breaking data isolation and potentially leaking or polluting information between customers.
Recommendation
Upgrade @payloadcms/plugin-multi-tenant to version 3.90.0 or 4.0.0-canary.34 (or later) to restore proper tenant isolation.
Other vulnerabilities in @payloadcms/plugin-multi-tenant
Original NVD description (English source)
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, an authenticated user limited to one tenant can create a record in another tenant when at least one tenant-enabled collection exists. Reads and direct edits of existing documents in the target tenant are not bypassed. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS