CVE-2026-105858

HIGH CVSS 3.1: 8.1 EPSS 0.48%
Updated Oct 15, 2026
Payload
Parameter Value
CVSS 8.1 (HIGH)
Affected Versions before 3.90.0
Fixed In 3.90.0
Type CWE-1321 (Prototype Pollution), CWE-94 (Code Injection)
Vendor Payload
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 35

Configuration From (including) Up to (excluding)
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:*:*:*:*:*:node.js:*:*
— 3.90.0
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary0:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary1:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary10:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary11:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary12:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary13:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary14:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary15:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary16:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary17:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary18:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary19:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary2:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary20:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary21:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary22:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary23:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary24:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary25:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary26:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary27:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary28:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary29:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary3:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary30:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary31:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary32:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary33:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary4:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary5:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary6:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary7:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary8:*:*:*:node.js:*:*
— —
Payloadcms Payload
cpe:2.3:a:payloadcms:payload:4.0.0:canary9:*:*:*:node.js:*:*
— —