CVE-2026-105863— Payload authentication token field handling issue
Quick assessment
Affected
payloadcms payload
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Payload 是一个免费且开源的无头（headless）内容管理系统。在 3.0.0 之后、3.90.0 之前的版本中，如果自定义字段选项将某个字段映射到保留的身份验证声明名称上，则会在登录时签发的身份验证令牌中注入意外值。该问题已在 3.90.0 版本中修复。
Affected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| payloadcms | payload | >= 3.0.0, < 3.90.0 |
affected |
>= 4.0.0-canary.0, < 4.0.0-canary.34 |
affected |
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I. Basic Information for CVE-2026-105863
Vulnerability Information
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Vulnerability Title
Payload authentication token field handling issue
Source: CVE Program / CVE List V5
Vulnerability Description
Payload is a free and open source headless content management system. In versions after 3.0.0 and before 3.90.0, a custom field option that maps a field to a reserved authentication claim name can place unintended values in the authentication token issued at login. This issue is fixed in version 3.90.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| payloadcms | payload | >= 3.0.0, < 3.90.0 | - |
|
II. Public POCs for CVE-2026-105863
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-105863 (3)
-
https://github.com/payloadcms/payload/releases/tag/v3.90.0 x_refsource_MISC
-
https://github.com/payloadcms/payload/security/advisories/GHSA-66wr-7vmr-p5jq x_refsource_CONFIRM
Same Patch Batch · payloadcms · 2026-10-06 · 29 CVEs total
| CVE-2026-105857 | 10.0 CRITICAL | Payload: RCE in Payload Form Builder |
| CVE-2026-105845 | 9.8 CRITICAL | Payload: SQL Injection in SQLite and Postgres |
| CVE-2026-105859 | 9.8 CRITICAL | Payload: Unauthorized update to collection documents |
| CVE-2026-105844 | 9.3 CRITICAL | Payload: Prototype pollution in Payload Import Export plugin |
| CVE-2026-105851 | 9.3 CRITICAL | Payload: Field access control bypass on auth collections |
| CVE-2026-105850 | 8.8 HIGH | Payload: Order confirmation validation issue in Payload Ecommerce |
| CVE-2026-105854 | 8.7 HIGH | Payload: ReDoS in Multipart Content-Type Validation |
| CVE-2026-105862 | 8.7 HIGH | Payload: Bypassed sanitization of user uploaded SVGs |
| CVE-2026-105868 | 8.6 HIGH | Payload: Uploaded XML files could execute same-origin JavaScript |
| CVE-2026-105856 | 8.6 HIGH | Payload: SQL injection in SQLite/Postgres |
| CVE-2026-105806 | 8.6 HIGH | Payload: Improper access control for MCP API keys |
| CVE-2026-105865 | 8.1 HIGH | Payload: Incomplete validation during the upload file lifecycle |
| CVE-2026-105858 | 8.1 HIGH | Payload: Remote Code Execution through first-register |
| CVE-2026-105849 | 7.7 HIGH | Payload: API key disclosure through ordinary document reads |
| CVE-2026-105855 | 7.6 HIGH | Payload: Field-level password update restrictions were not enforced |
| CVE-2026-105861 | 7.2 HIGH | Payload external upload trust validation issue |
| CVE-2026-106100 | 7.1 HIGH | Payload: Field-level write access bypass in Payload on MongoDB |
| CVE-2026-105867 | 7.1 HIGH | Payload: Client uploads could overwrite S3 objects |
| CVE-2026-105860 | 7.1 HIGH | Payload: Tenant authorization bypass in Multi-Tenant Plugin |
| CVE-2026-105847 | 7.1 HIGH | Payload: Polymorphic join queries could disclose hidden fields |
Showing top 20 of 29 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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CVE-2026-106100
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CVE-2026-105868
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CVE-2026-105867
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CVE-2026-105866
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Same vendor: payloadcms
-
CVE-2026-106100
Payload: Field-level write access bypass in Payload on Mongo -
CVE-2026-105868
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CVE-2026-105867
Payload: Client uploads could overwrite S3 objects -
CVE-2026-105866
Payload: Unauthenticated account-lockout denial of service -
CVE-2026-105865
Payload: Incomplete validation during the upload file lifecy
Same weakness: CWE-290
-
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