CVE-2026-8404— Potential exposure of private data via case-sensitive Cache-Control directives in UpdateCacheMiddleware
Possible ATT&CK Techniques 1AI
T1530 · Data from Cloud StorageAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| djangoproject | Django | 6.0< 6.0.6 | affected |
6.0.6 | unaffected | ||
5.2< 5.2.15 | affected | ||
5.2.15 | unaffected |
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-8404
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Potential exposure of private data via case-sensitive Cache-Control directives in UpdateCacheMiddleware
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. `django.middleware.cache.UpdateCacheMiddleware` in Django does not match `Cache-Control` response directives case-insensitively, which allows remote attackers to read responses that were incorrectly cached because their `Cache-Control` directives used uppercase or mixed-case values. 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 Ahmed Badawe for reporting this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
大小写敏感处理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Django 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Django是Django基金会的一套基于Python语言的开源Web应用框架。该框架包括面向对象的映射器、视图系统、模板系统等。 Django 5.2.15之前版本和6.0.6之前版本存在安全漏洞，该漏洞源于UpdateCacheMiddleware未对Cache-Control响应指令进行大小写不敏感匹配，可能导致响应被错误缓存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| djangoproject | Django | 6.0 ~ 6.0.6 | - |
II. Public POCs for CVE-2026-8404
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-8404
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-8404 (1)
- Archive of security issues | Django documentation | Djangovendor-advisory
Mailing List Discussions for CVE-2026-8404 (1)
- django-announce - Google Groupsmailing-list
Security Blog Posts for CVE-2026-8404 (1)
Same Patch Batch · djangoproject · 2026-06-03 · 7 CVEs total
| CVE-2026-44545 | 5.3 MEDIUM | Unbounded WebSocket message and frame sizes can cause unauthenticated remote denial of ser |
| CVE-2026-44546 | 3.7 LOW | Header injection via WebSocket upgrade parser differential allows ASGI scope header spoofi |
| CVE-2026-7666 | 3.1 LOW | Potential unencrypted email transmission via STARTTLS in the SMTP backend |
| CVE-2026-48587 | 3.1 LOW | Potential exposure of private data via whitespace padding in Vary header |
| CVE-2026-35193 | 3.1 LOW | Potential exposure of private data via missing Vary: Authorization in UpdateCacheMiddlewar |
| CVE-2026-6873 | 3.1 LOW | Signed cookie salt namespace collision in django.http.HttpRequest.get_signed_cookie |
IV. Related Vulnerabilities
Same product: Django
- CVE-2026-53878
Header injection possibility since DomainNameValidator accep - CVE-2026-53877
Heap buffer over-read in GDALRaster - CVE-2026-48588
Potential exposure of private data via cached Set-Cookie res - CVE-2026-48587
Potential exposure of private data via whitespace padding in - CVE-2026-35193
Potential exposure of private data via missing Vary: Authori
Same vendor: djangoproject
- CVE-2026-53878
Header injection possibility since DomainNameValidator accep - CVE-2026-53877
Heap buffer over-read in GDALRaster - CVE-2026-48588
Potential exposure of private data via cached Set-Cookie res - CVE-2026-44546
Header injection via WebSocket upgrade parser differential a - CVE-2026-44545
Unbounded WebSocket message and frame sizes can cause unauth
Same weakness: CWE-178
- CVE-2026-53595
FreeScout vulnerable to anonymous account takeover via /user - CVE-2026-62230
Grav < 2.0.4 File Access Bypass via Case Variation - CVE-2026-55170
OpenFGA MySQL backend: case-insensitive collation on identif - CVE-2026-54528
jupyterlab-git excluded_paths Case-Sensitivity Bypass Allows - CVE-2026-54763
Traefik: headerField underscore-variant identity spoofing in
V. Comments for CVE-2026-8404
No comments yet