CVE-2026-105854— Payload: ReDoS in Multipart Content-Type Validation
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 是一款免费且开源的无头内容管理系统。在 3.0.0 至 3.90.0 版本（不含 3.90.0）之间，以及 4.0.0-canary.34 之前的 canary 测试版本中，存在一个安全漏洞：恶意的 multipart 请求体可能导致 multipart Content-Type 处理过程耗时极长，从而引发不受控制的资源消耗。该问题已在 3.90.0 和 4.0.0-canary.34 版本中得到修复。
Possible ATT&CK Techniques 1 AI
T1496 · Resource Hijacking
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-105854
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Payload: ReDoS in Multipart Content-Type Validation
Source: CVE Program / CVE List V5
Vulnerability Description
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, a malformed multipart request body can cause multipart Content-Type processing to take an extremely long time, resulting in uncontrolled resource consumption. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
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-2026-105854
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-105854
请登录查看更多情报信息。
Other References for CVE-2026-105854 (3)
-
https://github.com/payloadcms/payload/releases/tag/v3.90.0 x_refsource_MISC
-
https://github.com/payloadcms/payload/security/advisories/GHSA-2g7p-5934-q4w7 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-2026-105856 | 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-2026-105853 | 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-2026-105861
Payload external upload trust validation issue -
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
Same vendor: payloadcms
-
CVE-2026-105861
Payload external upload trust validation issue -
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
Same weakness: CWE-400
-
CVE-2026-105760
vLLM: GLMGA video sampling permits request-driven CPU and me -
CVE-2026-105759
vLLM: Unbounded Prometheus label cardinality from attacker-c -
CVE-2026-105749
Docling: Unbounded table rowspan/colspan in HTML, JATS, ODS -
CVE-2026-104861
probe-image-size: Quadratic-time Denial of Service in the SV -
CVE-2026-104844
PostCSS: Quadratic complexity in flat selector parsing allow
V. Comments for CVE-2026-105854
No comments yet