Low severity3.1NVD Advisory· Published Jun 3, 2026· Updated Jul 21, 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
djangoPyPI | < 5.2.15 | 5.2.15 |
djangoPyPI | >= 6.0.0, < 6.0.6 | 6.0.6 |
Affected products
12- osv-coords9 versionspkg:bitnami/djangopkg:rpm/opensuse/python-Django6&distro=openSUSE%20Tumbleweedpkg:rpm/suse/python-Django&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7pkg:rpm/opensuse/python-Django4&distro=openSUSE%20Tumbleweedpkg:apk/chainguard/openstack-horizon-2026.1-fipspkg:rpm/opensuse/python-Django&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python-Django&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/python-Django5&distro=openSUSE%20Tumbleweedpkg:apk/chainguard/openstack-horizon-2026.1
>= 5.2.0, < 5.2.15+ 8 more
- (no CPE)range: >= 5.2.0, < 5.2.15
- (no CPE)range: < 6.0.6-1.1
- (no CPE)range: < 4.2.11-150600.3.59.1
- (no CPE)range: < 4.2.30-3.1
- (no CPE)range: < 25.7.3_git20260806-r1
- (no CPE)range: < 5.2.15-1.1
- (no CPE)range: < 5.2.4-bp160.9.1
- (no CPE)range: < 5.2.16-1.1
- (no CPE)range: < 25.7.3_git20260806-r1
- Range: <5.2.15, <6.0.6
- Package: https://pypi.org/project/django
Patches
Vulnerability mechanics
References
11- docs.djangoproject.com/en/dev/releases/security/nvdPatchVendor Advisory
- www.djangoproject.com/weblog/2026/jun/03/security-releases/nvdPatchVendor Advisory
- github.com/advisories/GHSA-923m-gv2p-w5qpghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-48587ghsaADVISORY
- docs.djangoproject.com/en/dev/releases/securityghsaWEB
- github.com/django/django/commit/1721035a72624aad7b38dd19b14013efd94b24b8ghsaWEB
- github.com/django/django/commit/42aa0b3364d312e7c6472258d8b0e9c0277fbf22ghsaWEB
- github.com/django/django/commit/9b62b0af71a14c657d19d95371630ba839e83d9aghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-198.yamlghsaWEB
- groups.google.com/g/django-announcenvdRelease NotesWEB
- www.djangoproject.com/weblog/2026/jun/03/security-releasesghsaWEB
News mentions
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