Low severity3.1NVD Advisory· Published Jun 3, 2026· Updated Jun 5, 2026
CVE-2026-48587
CVE-2026-48587
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.
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Affected products
9- Package: https://pypi.org/project/django
- Range: <5.2.15, <6.0.6
- osv-coords6 versionspkg:bitnami/djangopkg:rpm/opensuse/python-Django4&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python-Django6&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python-Django&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/python-Django&distro=openSUSE%20Tumbleweedpkg:rpm/suse/python-Django&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7
>= 5.2.0, < 5.2.15+ 5 more
- (no CPE)range: >= 5.2.0, < 5.2.15
- (no CPE)range: < 4.2.30-3.1
- (no CPE)range: < 6.0.6-1.1
- (no CPE)range: < 5.2.4-bp160.9.1
- (no CPE)range: < 5.2.15-1.1
- (no CPE)range: < 4.2.11-150600.3.59.1
Patches
Vulnerability mechanics
References
3- docs.djangoproject.com/en/dev/releases/security/nvdPatchVendor Advisory
- www.djangoproject.com/weblog/2026/jun/03/security-releases/nvdPatchVendor Advisory
- groups.google.com/g/django-announcenvdRelease Notes
News mentions
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