Payload: Remote Code Execution through first-register
Summary
| CVE | CVE-2026-105858 |
|---|---|
| State | PUBLISHED |
| Assigner | GitHub_M |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-06 17:17:21 UTC |
| Updated | 2026-10-15 00:11:17 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 8.1 HIGH from [email protected]
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.004820000 probability, percentile 0.396860000 (date 2026-10-11)
Problem Types: CWE-94 | CWE-1321 | CWE-94 CWE-94: Improper Control of Generation of Code ('Code Injection') | CWE-1321 CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 8.1 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 8.1 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Payloadcms | Payload | All | All | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary0 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary1 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary10 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary11 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary12 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary13 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary14 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary15 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary16 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary17 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary18 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary19 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary2 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary20 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary21 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary22 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary23 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary24 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary25 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary26 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary27 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary28 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary29 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary3 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary30 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary31 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary32 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary33 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary4 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary5 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary6 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary7 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary8 | All | All |
| Application | Payloadcms | Payload | 4.0.0 | canary9 | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Payloadcms | Payload | affected < 3.90.0 | Not specified |
| CNA | Payloadcms | Payload | affected >= 4.0.0-canary.0, < 4.0.0-canary.34 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/payloadcms/payload/commit/e947fc4ba4a434f276d043386e501b1d14e... | [email protected] | github.com | Patch |
| github.com/payloadcms/payload/security/advisories/GHSA-97rh-rhh2-7vjv | [email protected] | github.com | Vendor Advisory |
| github.com/payloadcms/payload/releases/tag/v3.90.0 | [email protected] | github.com | Patch, Release Notes |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.