High severity · published Oct 6, 2026
CVE-2026-105851
Payload: Field access control bypass on auth collections
8.1
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
payload · payloadcms
> 3.0.0, < 3.90.0; > 4.0.0-canary.0, < 4.0.0-canary.34 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-105851
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-105851
x_refsource_CONFIRM
https://github.com/payloadcms/payload/security/advisories/GHSA-vc4h-q48j-5hcx
x_refsource_MISC
https://github.com/payloadcms/payload/commit/099ef12e2682f076aa8e8d0ccb790536b4e1027f
x_refsource_MISC
https://github.com/payloadcms/payload/releases/tag/v3.90.0
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