CVE-2026-35193 Affecting py3-django package, versions <5.2.15-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.37% (30th percentile)

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  • Snyk IDSNYK-ALPINE324-PY3DJANGO-17311211
  • published12 Jun 2026
  • disclosed3 Jun 2026

Introduced: 3 Jun 2026

CVE-2026-35193  (opens in a new tab)

How to fix?

Upgrade Alpine:3.24 py3-django to version 5.2.15-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream py3-django package and not the py3-django package as distributed by Alpine. See How to fix? for Alpine:3.24 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1