CVE-2026-5766— ASGI请求通过文件上传限制绕过潜在的服务拒绝漏洞
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一、 漏洞 CVE-2026-5766 基础信息
漏洞信息
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Vulnerability Title
Potential denial-of-service vulnerability in ASGI requests via file upload limit bypass
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
An issue was discovered in 6.0 before 6.0.5 and 5.2 before 5.2.14. ASGI requests with a missing or understated `Content-Length` header can bypass the `FILE_UPLOAD_MAX_MEMORY_SIZE` limit, potentially loading large files into memory and causing service degradation. As a reminder, Django expects a limit to be configured at the web server level rather than solely relying on `FILE_UPLOAD_MAX_MEMORY_SIZE`. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Kyle Agronick for reporting this issue.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
长度参数不一致性处理不恰当
来源: 美国国家漏洞数据库 NVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| djangoproject | Django | 6.0 ~ 6.0.5 | - |
二、漏洞 CVE-2026-5766 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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- Archive of security issues | Django documentation | Djangovendor-advisory
- django-announce - Google Groupsmailing-list
- https://nvd.nist.gov/vuln/detail/CVE-2026-5766
同批安全公告 · djangoproject · 2026-05-05 · 共 3 条
| CVE-2026-6907 | 4.3 MEDIUM | UpdateCacheMiddleware因错误处理Vary:*导致私 |
| CVE-2026-35192 | SESSION_SAVE_EVERY_REQUEST 会话固定漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-5766
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