CVE-2026-48587

3.1 LOW
Published: June 03, 2026 Modified: June 05, 2026
View on NVD

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://docs.djangoproject.com/en/dev/releases/security/
Source: 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
Patch Vendor Advisory
https://groups.google.com/g/django-announce
Source: 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
Release Notes
https://www.djangoproject.com/weblog/2026/jun/03/security-releases/
Source: 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
Patch Vendor Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
3.1 / 10.0
EPSS (Exploit Probability)
0.0%
13th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

djangoproject