Incomplete Comparison with Missing Factors in Django - CVE-2026-48587
Published: June 4, 2026
Vulnerability identifier: #VU133399
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-48587
CWE-ID: CWE-1023
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Django Software Foundation
Affected software:
Django
Django
Detailed vulnerability description
The vulnerability allows a local attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to "django.utils.cache.has_vary_header()" does not strip leading or trailing whitespace from "Vary" response header values before comparison. A remote attacker can read cached responses on the system.
How to mitigate CVE-2026-48587
Install updates from vendor's website.