CVE-2026-105851
High
Description
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, the duplicate operation copies values from a source document even when a field is hidden or its access.read or access.create rule rejects that value for the caller. The disableDuplicate setting does not prevent this access-control bypass. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
SeverityHigh
CVSS8.1
Exploit probability—
ProductPayload
PublishedOct 6, 2026
First seenOct 6, 2026
How to fix
Update
- payloadcms payload3.90.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| payloadcms payload | 3.0.0 ≤ v < 3.90.0, 4.0.0 | 3.90.0 |
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