GHSA-xhm9-gwgw-3q2q

Suggest an improvement
Source
https://github.com/advisories/GHSA-xhm9-gwgw-3q2q
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-xhm9-gwgw-3q2q/GHSA-xhm9-gwgw-3q2q.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-xhm9-gwgw-3q2q
Aliases
Published
2026-10-07T20:29:27Z
Modified
2026-10-07T20:45:07Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
@payloadcms/plugin-multi-tenant has a cross-tenant create issue
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-07T20:29:27Z",
    "nvd_published_at": "2026-10-06T17:17:22Z",
    "severity": "MODERATE"
}
References

Affected packages

npm / @payloadcms/plugin-multi-tenant

Package

Name
@payloadcms/plugin-multi-tenant
View open source insights on deps.dev
Purl
pkg:npm/%40payloadcms/plugin-multi-tenant

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.90.0

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-xhm9-gwgw-3q2q/GHSA-xhm9-gwgw-3q2q.json"

npm / @payloadcms/plugin-multi-tenant

Package

Name
@payloadcms/plugin-multi-tenant
View open source insights on deps.dev
Purl
pkg:npm/%40payloadcms/plugin-multi-tenant

Affected ranges

Type
SEMVER
Events
Introduced
4.0.0-canary.0
Fixed
4.0.0-canary.34

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-xhm9-gwgw-3q2q/GHSA-xhm9-gwgw-3q2q.json"