High
Payload: Tenant authorization bypass in Multi-Tenant Plugin
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-105860
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 05:09 UTC · Revision 1
Source evidence
Payload: Tenant authorization bypass in Multi-Tenant Plugin
core-osv · Original sourcePublished 6 Oct 2026, 16:33 UTC
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.
osv:CVE-2026-105860
Complete source record
{
"id": "1310addb4a91b43eae079180c3a892bfc1216eadd9cd0364bb535daeafa41689",
"url": "https://osv.dev/vulnerability/CVE-2026-105860",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Payload: Tenant authorization bypass in Multi-Tenant Plugin",
"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, 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.",
"evidence": "osv:CVE-2026-105860",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-105860",
"aliases": [
"CVE-2026-105860",
"GHSA-p96c-xwx8-3cqj"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "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"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/payloadcms/payload",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "e10b60228b92b680663110ea2af431643bfc6126"
},
{
"fixed": "19b58692d20d3947f31124bf7a88ac14a5ebf02e"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:payloadcms:payload:*:*:*:*:*:node.js:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.90.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "19b58692d20d3947f31124bf7a88ac14a5ebf02e"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "e10b60228b92b680663110ea2af431643bfc6126"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v3.90.0"
}
]
}
}
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105860.json"
}
}
],
"modified": "2026-10-28T02:30:33.266142301Z",
"provider": "osv",
"references": [
"https://github.com/payloadcms/payload/releases/tag/v3.90.0",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105860.json",
"https://github.com/payloadcms/payload/security/advisories/GHSA-p96c-xwx8-3cqj",
"https://nvd.nist.gov/vuln/detail/CVE-2026-105860",
"https://github.com/payloadcms/payload/commit/19b58692d20d3947f31124bf7a88ac14a5ebf02e"
],
"provider_metadata": {
"cwe_ids": [
"CWE-862"
],
"cna_assigner": "GitHub_M",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "4.0.0-canary.0"
},
{
"fixed": "4.0.0-canary.34"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105860.json"
}
},
"related_cves": [
{
"value": "CVE-2026-105860",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 500443,
"published_at": "2026-10-06T16:33:20.213+00:00"
}