CVE-2026-105864
Payload: Cross-tenant create in @payloadcms/plugin-multi-tenant
Description
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.
INFO
Published Date :
Oct. 6, 2026, 5:17 p.m.
Last Modified :
Oct. 15, 2026, 12:08 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update @payloadcms/plugin-multi-tenant to version 3.90.0 or later.
- Update to canary version 4.0.0-canary.34 or later.
- Verify tenant access controls are correctly enforced.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-105864.
| URL | Resource |
|---|---|
| https://github.com/payloadcms/payload/commit/b8fc06a18afb6974dc07f95ac1e541c716e5926b | Patch |
| https://github.com/payloadcms/payload/releases/tag/v3.90.0 | Patch Release Notes |
| https://github.com/payloadcms/payload/security/advisories/GHSA-xhm9-gwgw-3q2q | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-105864 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-105864
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-105864 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-105864 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Oct. 15, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:payloadcms:payload:4.0.0:canary1:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary10:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary11:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary12:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary13:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary14:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary15:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary16:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary17:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary18:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary19:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary2:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary3:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary4:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary5:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary6:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary7:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary8:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary9:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary0:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:*:*:*:*:*:node.js:*:* versions up to (excluding) 3.90.0 *cpe:2.3:a:payloadcms:payload:4.0.0:canary20:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary21:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary22:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary23:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary24:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary25:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary26:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary27:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary28:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary29:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary30:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary31:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary32:*:*:*:node.js:*:* *cpe:2.3:a:payloadcms:payload:4.0.0:canary33:*:*:*:node.js:*:* Added Reference Type GitHub, Inc.: https://github.com/payloadcms/payload/commit/b8fc06a18afb6974dc07f95ac1e541c716e5926b Types: Patch Added Reference Type GitHub, Inc.: https://github.com/payloadcms/payload/releases/tag/v3.90.0 Types: Patch, Release Notes Added Reference Type GitHub, Inc.: https://github.com/payloadcms/payload/security/advisories/GHSA-xhm9-gwgw-3q2q Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 06, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-105864', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-10-06T17:25:08.590502Z'} -
New CVE Received by [email protected]
Oct. 06, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-863 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/105xxx/CVE-2026-105864.json">CVE-2026-105864</a> Added Reference https://github.com/payloadcms/payload/commit/b8fc06a18afb6974dc07f95ac1e541c716e5926b Added Reference https://github.com/payloadcms/payload/releases/tag/v3.90.0 Added Reference https://github.com/payloadcms/payload/security/advisories/GHSA-xhm9-gwgw-3q2q