Disclosure summary
### Impact An authenticated user limited to one tenant could create a record in another tenant. This requires the multi-tenant plugin with at least one tenant-enabled collection. Reads and direct edits to an existing target-tenant document were not bypassed. You are affected if: - You are using @payloadcms/plugin-multi-tenant ### Patches Users should upgrade Payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`. ### Workarounds You can add access control with `accessResultOverride` on the multi-tenant collection config to ensure a user has access to the tenant before creating.
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
GitHub Reviewed Security Advisories · GHSA-xhm9-gwgw-3q2q
Open original source · Updated Oct 07, 2026
@payloadcms/plugin-multi-tenant has a cross-tenant create issue
Source severity: MEDIUM / 5.3
| Ecosystem | Package | Affected range | First patched |
|---|---|---|---|
| npm | @payloadcms/plugin-multi-tenant | < 3.90.0 | 3.90.0 |
| npm | @payloadcms/plugin-multi-tenant | >= 4.0.0-canary.0, < 4.0.0-canary.34 | 4.0.0-canary.34 |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Reviewed advisory
PUBLISHED 2026-10-07T16:29:27-04:00
MODIFIED 2026-10-07T16:29:30-04:00
INGESTED 2026-10-08T12:30:39-04:00