CVE-2026-8404

June 4, 2026, 3:21 p.m.

2.3
Low

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.

Product(s) Impacted

Vendor Product Versions
Domaindjango
  • Django
  • 5.2, 6.0, 5.0, 4.1, 3.2

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-178
Improper Handling of Case Sensitivity
The product does not properly account for differences in case sensitivity when accessing or determining the properties of a resource, leading to inconsistent results.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a domaindjango django 5.2 / / / / / / /
a domaindjango django 6.0 / / / / / / /
a domaindjango django 5.0 / / / / / / /
a domaindjango django 4.1 / / / / / / /
a domaindjango django 3.2 / / / / / / /

References

https://docs.djangoproject.com/en/dev/releases/security/
https://groups.google.com/g/django-announce
https://www.djangoproject.com/weblog/2026/jun/03/security-releases/

Tags

CWE-178
6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
2026-06-03
CVE-2026-8404

CVSS Score

2.3 / 10

CVSS Data - 4.0

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Attack Requirements: PRESENT
  • Privileges Required: NONE
  • User Interaction: PASSIVE
  • Scope:
  • Confidentiality Impact: LOW
  • Integrity Impact: NONE
  • Availability Impact: NONE
  • Exploit Maturity: NOT_DEFINED

    • CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

    View Vector String

Timeline

Published: June 3, 2026, 2:16 p.m.
Last Modified: June 4, 2026, 3:21 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

6a34fbeb-21d4-45e7-8e0a-62b95bc12c92

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.