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TI-2026-27346 Aliases CVE-2026-35193GHSA-qpc8-7fxc-cm4p

Potential exposure of private data via missing Vary: Authorization in UpdateCacheMiddleware

Priority LOW 12CWE-524Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 4 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00372 31st percentileScored 2026-11-07
Fix Partial Django (djangoproject): 6.0.6, 5.2.15django (PyPI): 5.2.15, 6.0.6Red Hat: 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
djangoprojectDjango6.0 to before 6.0.6; 5.2 to before 5.2.156.0.6, 5.2.15Patch availableCNA
—django (PyPI)5.2.0 to before 5.2.155.2.15Patch availableGHSA-qpc8-7fxc-cm4p
—django (PyPI)6.0.0 to before 6.0.66.0.6Patch availableGHSA-qpc8-7fxc-cm4p
  • Django Vendordjangoproject Affected 6.0 to before 6.0.6; 5.2 to before 5.2.15 Fixed in 6.0.6, 5.2.15 Patch available CNA
  • django (PyPI) Vendor— Affected 5.2.0 to before 5.2.15 Fixed in 5.2.15 Patch available GHSA-qpc8-7fxc-cm4p
  • django (PyPI) Vendor— Affected 6.0.0 to before 6.0.6 Fixed in 6.0.6 Patch available GHSA-qpc8-7fxc-cm4p

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*5.2 to before 5.2.15; 6.0 to before 6.0.6Vulnerabledjangoproject
  • cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* Versions 5.2 to before 5.2.15; 6.0 to before 6.0.6 Vulnerable ·djangoproject

Remediation

  • Fix · CNA Django (djangoproject) Fixed in 6.0.6, 5.2.15
  • Fix · GHSA-qpc8-7fxc-cm4p django (PyPI) Fixed in 5.2.15 Advisory →
  • Fix · GHSA-qpc8-7fxc-cm4p django (PyPI) Fixed in 6.0.6 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    djangoproject Django — Django security releases issued: 6.0.6 and 5.2.15

    5 records Highest priority Priority LOW 5 LOW

    Other records, highest priority first

    • TI-2026-35943 Potential exposure of private data via whitespace padding in Vary headerPriority LOW 12
    • TI-2026-07386 Potential exposure of private data via case-sensitive Cache-Control directives in UpdateCacheMiddlewarePriority LOW 12
    • TI-2026-06029 Signed cookie salt namespace collision in django.http.HttpRequest.get_signed_cookiePriority LOW 12
    Show all 5 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ansible Automation Platform 2AffectedNo fix yet: Fix deferred
Red Hat Discovery 2AffectedNo fix yet: Fix deferred
Red Hat Satellite 6AffectedNo fix yet: Fix deferred
Self-service automation portal 2Affected—

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35193
  2. 2026-10-03 Alias added: GHSA-qpc8-7fxc-cm4p

References

Patch 2

Advisory 1

Other 7

  • TI-2022-15177 An issue was discovered in Django 3.2 before 3.2.14 and 4.0 before 4.0.6. CVSS 3.1CRITICAL 9.8
  • TI-2020-05994 Django 1.11 before 1.11.28, 2.2 before 2.2.10, and 3.0 before 3.0.3 allows SQL Injection… CVSS 3.1CRITICAL 9.8
  • TI-2023-10198 An issue was discovered in the Multipart Request Parser in Django 3.2 before 3.2.18, 4.0… CVSS 3.1HIGH 7.5
  • TI-2019-14306 Django before 1.11.27, 2.x before 2.2.9, and 3.x before 3.0.1 allows account takeover. CVSS 3.1CRITICAL 9.8
  • TI-2019-10595 An issue was discovered in Django 1.11.x before 1.11.23, 2.1.x before 2.1.11, and 2.2.x… CVSS 3.0CRITICAL 9.8
  • TI-2021-14006 Django 3.1.x before 3.1.13 and 3.2.x before 3.2.5 allows QuerySet.order_by SQL injection… CVSS 3.1CRITICAL 9.8
See all 156 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences