CVE-2026-105858
Payload: Remote Code Execution through first-register
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
Payload is a free and open source headless content management system. In versions before 3.90.0 and canary versions before 4.0.0-canary.34, a crafted request to the public first-register operation can execute code remotely when local authentication is enabled and no initial user has been created. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
| CWE | CWE-94 CWE-1321 |
| Vendor | payloadcms |
| Product | payload |
| Published | Oct 6, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
payloadcms / payload
< 3.90.0 >= 4.0.0-canary.0, < 4.0.0-canary.34