VulnerabilityAnalyzed

CVE-2026-105851

The disableDuplicate setting does not prevent this access-control bypass.

CRITICAL 9.3EPSS 0.25%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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 4.0: 9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.25% probability · 16th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-284, CWE-863
Affected: payloadcms/payload
Source: security-advisories@github.com

EPSS trend

EPSS moved from 0.3% on 7 October 2026 to 0.2% on 26 October 2026.

References

https://github.com/payloadcms/payload/commit/099ef12e2682f076aa8e8d0ccb790536b4e1027fPatch
https://github.com/payloadcms/payload/releases/tag/v3.90.0Patch, Release Notes
https://github.com/payloadcms/payload/security/advisories/GHSA-vc4h-q48j-5hcxVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.