CVE-2026-105861— Payload external upload trust validation 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内容管理系统。在 3.0.0 之后且早于 3.90.0 的版本中，经过身份验证的外部 URL 基于上传检索功能，可能将认证数据转发至未被验证为可信的 redirect 目标地址，从而有可能使有效会话泄露给非预期的接收方。该问题已在 3.90.0 版本中得到修复。
Possible ATT&CK Techniques 1 AI
T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2026-105861
Vulnerability Information
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Vulnerability Title
Payload external upload trust validation 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, authenticated external URL-based upload retrieval can forward authentication data to a redirected destination that was not verified as trusted, potentially exposing a valid session to an unintended recipient. 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:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
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-2026-105861
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-105861 (3)
-
https://github.com/payloadcms/payload/releases/tag/v3.90.0 x_refsource_MISC
-
https://github.com/payloadcms/payload/security/advisories/GHSA-pj5h-5q6c-3pfx x_refsource_CONFIRM
Same Patch Batch · payloadcms · 2026-10-06 · 21 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-2026-105856 | 8.6 HIGH | Payload: SQL injection in SQLite/Postgres |
| CVE-2026-105806 | 8.6 HIGH | Payload: Improper access control for MCP API keys |
| CVE-2026-105858 | 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-2026-105853 | 7.1 HIGH | Payload: Token refresh and password reset responses may expose restricted user fields |
| CVE-2026-105847 | 7.1 HIGH | Payload: Polymorphic join queries could disclose hidden fields |
| CVE-2026-105860 | 7.1 HIGH | Payload: Tenant authorization bypass in Multi-Tenant Plugin |
| CVE-2026-105852 | 6.9 MEDIUM | Payload relationship-query authorization bypass |
| CVE-2026-105805 | 6.9 MEDIUM | Payload: Sort queries could expose protected field information |
| CVE-2026-105848 | 6.4 MEDIUM | Payload: Insufficient Access Control in Stripe REST Proxy |
| CVE-2026-105846 | 6.1 MEDIUM | Payload: Untrusted redirect URL parameter exploit |
| CVE-2026-105804 | 5.7 MEDIUM | Payload: Password hashes use insufficient PBKDF2 iterations |
IV. Related Vulnerabilities
Same product: payload
-
CVE-2026-105860
Payload: Tenant authorization bypass in Multi-Tenant Plugin -
CVE-2026-105859
Payload: Unauthorized update to collection documents -
CVE-2026-105858
Payload: Remote Code Execution through first-register -
CVE-2026-105857
Payload: RCE in Payload Form Builder -
CVE-2026-105856
Payload: SQL injection in SQLite/Postgres
Same vendor: payloadcms
-
CVE-2026-105860
Payload: Tenant authorization bypass in Multi-Tenant Plugin -
CVE-2026-105859
Payload: Unauthorized update to collection documents -
CVE-2026-105858
Payload: Remote Code Execution through first-register -
CVE-2026-105857
Payload: RCE in Payload Form Builder -
CVE-2026-105856
Payload: SQL injection in SQLite/Postgres
Same weakness: CWE-200
-
CVE-2026-105853
Payload: Token refresh and password reset responses may expo -
CVE-2026-105847
Payload: Polymorphic join queries could disclose hidden fiel -
CVE-2026-105805
Payload: Sort queries could expose protected field informati -
CVE-2026-105752
vLLM: Harmony tool continuations drop `cache_salt` — restori -
CVE-2026-105684
Penpot: Share-link page-scope escape — comment RPCs leak com
V. Comments for CVE-2026-105861
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