CVE-2026-48587

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.utils.cache.has_vary_header()` in Django does not strip leading or trailing whitespace from `Vary` response header values before comparison, which allows remote attackers to read cached responses via requests to URLs whose responses contain whitespace-padded Vary header 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 Navid Rezazadeh for reporting this issue.

Product(s) Impacted

Vendor Product Versions
Djangoproject
  • Django
  • <5.2.15, <6.0.6, 5.0.x, 4.1.x, 3.2.x

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-1023
Incomplete Comparison with Missing Factors
The product performs a comparison between entities that must consider multiple factors or characteristics of each entity, but the comparison does not include one or more of these factors.

*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 djangoproject django <5.2.15 / / / / / / /
a djangoproject django <6.0.6 / / / / / / /
a djangoproject django 5.0.x / / / / / / /
a djangoproject django 4.1.x / / / / / / /
a djangoproject django 3.2.x / / / / / / /

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-1023
6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
2026-06-03
CVE-2026-48587

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.