GHSA-p96c-xwx8-3cqj

Suggest an improvement
Source
https://github.com/advisories/GHSA-p96c-xwx8-3cqj
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-p96c-xwx8-3cqj/GHSA-p96c-xwx8-3cqj.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-p96c-xwx8-3cqj
Aliases
Published
2026-10-07T20:29:53Z
Modified
2026-10-07T20:45:05Z
Severity
  • 7.1 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Payload has a tenant authorization bypass in Multi-Tenant Plugin
Details

Impact

When using the default tenant array field access, an authenticated user could assign themselves to other tenants.

You are affected if:

  • You are using @payloadcms/plugin-multi-tenant

If you configure the tenants arrayFieldAccess.create/update functions, a secured replacement membership field, you are not affected by this specific default behavior.

Patches

Users should upgrade Payload packages to >= 3.90.0 or >= 4.0.0-canary.34.

Workarounds

Configure tenants arrayFieldAccess.create and tenants arrayFieldAccess.update so only trusted users authorized for all tenants can modify memberships.

Database specific 
{
    "cwe_ids": [
        "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-07T20:29:53Z",
    "nvd_published_at": "2026-10-06T17:17:22Z",
    "severity": "HIGH"
}
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-p96c-xwx8-3cqj/GHSA-p96c-xwx8-3cqj.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-p96c-xwx8-3cqj/GHSA-p96c-xwx8-3cqj.json"