An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6.
An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6.
django.middleware.cache.UpdateCacheMiddleware in Django does not add Authorization to the Vary response header for requests bearing that header without Cache-Control: public, which allows remote attackers to read private cached responses via unauthenticated requests to the same URL.
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 Shai Berger for reporting this issue.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | django | >= 5.2, < 5.2.15, >= 6.0, < 6.0.6 | 5.2.15, 6.0.6 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-35193
- https://github.com/django/django/commit/050a3dc276f9142067260e990e4d8d42d5e32863
- https://github.com/django/django/commit/664652f1a2dd80d8a4cd491b4313cad915ae6669
- https://github.com/django/django/commit/a2faa8e895926ac5d63f72879b5ccf671b5b4ba9
- https://docs.djangoproject.com/en/dev/releases/security
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-197.yaml
- https://groups.google.com/g/django-announce
- https://www.djangoproject.com/weblog/2026/jun/03/security-releases
- https://docs.djangoproject.com/en/dev/releases/security/
- https://www.djangoproject.com/weblog/2026/jun/03/security-releases/
- https://github.com/advisories/GHSA-qpc8-7fxc-cm4p
- CVSS vector
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- Weakness (CWE)
CWE-524- Platform
- Python (PyPI)
- Package
django- Disclosed
- 03.06.2026
- Updated
- 11.10.2026 14:19
Sources and licenses
OSV / GitHub Advisory Database - GHSA-qpc8-7fxc-cm4p - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-197 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: django
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 162
- First → latest
- 10.2007 08.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 16
- High 65
- Medium 63
- Low 18
Disclosures per year
- 2017: 3
- 2018: 5
- 2019: 11
- 2020: 6
- 2021: 8
- 2022: 14
- 2023: 7
- 2024: 14
- 2025: 12
- 2026: 26
earlier: 56
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An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. this entry
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