CVE-2026-105864

mediumpriority · track · 17OT risk · elevatedEPSS 0.002 · 9 %ileUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.20% (9th) EPSS

CVSS 4.3 · medium

Is it mine?

4 products

Check your exposure

Who says so?

2 sources

nvd · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.3–5.3

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 1.4

v4.05.3mediumCVSS:4.0/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:Xsecondary · security-advisories@github.com

v4.01.3lowCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USCWE-863US

affected products (4)

Products and version ranges known to be affected.

payloadcms payload< 3.90.0nvdUScpe:2.3:a:payloadcms:payload:*:*:*:*:*:*:*:*
payloadcms payload= 4.0.0nvdUScpe:2.3:a:payloadcms:payload:*:*:*:*:*:*:*:*
npm @payloadcms/plugin-multi-tenant< 3.90.0osvUSpkg:npm/%40payloadcms/plugin-multi-tenant
npm @payloadcms/plugin-multi-tenant4.0.0-canary.0 → 4.0.0-canary.34osvUSpkg:npm/%40payloadcms/plugin-multi-tenant

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-xhm9-gwgw-3q2q@payloadcms/plugin-multi-tenant has a cross-tenant create issue2026-10-07ghsa · osvUS
### 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.

sources

Which sources assert this record, and when.

nvd osv NVD CVE.org MITRE

published 2026-10-06modified 2026-10-15

references (3) nvd

External citations — patches, advisories, analysis.

https://github.com/payloadcms/payload/commit/b8fc06a18afb6974dc07f95ac1e541c716e5926bPatch
https://github.com/payloadcms/payload/releases/tag/v3.90.0PatchRelease Notes
https://github.com/payloadcms/payload/security/advisories/GHSA-xhm9-gwgw-3q2qVendor Advisory

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