CVE-2026-105865— Payload: Incomplete validation during the upload file lifecycle
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（CMS）。在版本 3.90.0 之前以及 canary 版本中早于 4.0.0-canary.34 的版本里，任何拥有更新或删除本地存储上传文件权限的已认证用户，可能导致文件清理机制意外删除配置上传目录之外的文件，从而引发数据丢失或服务中断。对于仅允许受信任用户管理上传内容的部署环境，受影响程度较低。该问题已在版本 3.90.0 和 4.0.0-canary.34 中得到修复。
Possible ATT&CK Techniques 1 AI
T1485 · Data DestructionAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| payloadcms | payload | < 3.90.0 |
affected |
>= 4.0.0-canary.0, < 4.0.0-canary.34 |
affected |
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I. Basic Information for CVE-2026-105865
Vulnerability Information
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Vulnerability Title
Payload: Incomplete validation during the upload file lifecycle
Source: CVE Program / CVE List V5
Vulnerability 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, an authenticated user who can update or delete uploads stored locally can cause file cleanup to remove unintended files outside the configured upload directory, resulting in data loss or service disruption. Deployments that restrict upload management to trusted users are less exposed. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| payloadcms | payload | < 3.90.0 | - |
|
II. Public POCs for CVE-2026-105865
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-105865 (3)
-
https://github.com/payloadcms/payload/releases/tag/v3.90.0 x_refsource_MISC
-
https://github.com/payloadcms/payload/security/advisories/GHSA-p223-2wr2-j562 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-2026-105863 | 9.2 CRITICAL | Payload authentication token field handling issue |
| 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-2026-105858 | 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-2026-105864
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Same vendor: payloadcms
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CVE-2026-106100
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CVE-2026-105866
Payload: Unauthenticated account-lockout denial of service -
CVE-2026-105864
Payload: Cross-tenant create in @payloadcms/plugin-multi-ten
Same weakness: CWE-22
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CVE-2026-106486
Backstage: Improper filesystem validation in Bitbucket pull-
V. Comments for CVE-2026-105865
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