GHSA-7h2m-m8vj-598h BIT-django-2026-35192 CVE-2026-35192 PYSEC-2026-50

Django Uses Persistent Cookies Containing Sensitive Information

Medium PyPI

Severity: 0.0 / 10; Medium · CVSS 4.0
Exploit chance (EPSS): 0.54%; Chance of exploitation in the next 30 days. Higher than 45.67% of scored vulnerabilities.
Known exploited: No; Not in CISA's catalog
Weakness: CWE-539 Use of Persistent Cookies Containing Sensitive Information
Fix: 6.0.5; Upgrade django to this version or later

Description

An issue was discovered in 6.0 before 6.0.5 and 5.2 before 5.2.14. Response headers do not vary on cookies if a session is not modified, but SESSION_SAVE_EVERY_REQUEST is True. A remote attacker can steal a user's session after that user visits a cached public page. 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 thanks Cantina for reporting this issue.

Affected versions

PyPI

Package	Vulnerable	Fixed in
django	`>= 6.0, < 6.0.5`	`6.0.5`
django	`>= 5.2, < 5.2.14`	`5.2.14`
django	`>= 5.2, < 5.2.14` `>= 6.0, < 6.0.5`	`5.2.14` `6.0.5`

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

django PyPI → `6.0.5`

pip

pip install --upgrade "django>=6.0.5"

poetry

poetry add "django>=6.0.5"

uv

uv add "django>=6.0.5"

Severity breakdown

CVSS 4.0 0.0

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

Attack vector: Network
Attack complexity: Low
Attack requirements: Present
Privileges required: None
User interaction: Passive
Confidentiality (vulnerable system): Low
Integrity (vulnerable system): None
Availability (vulnerable system): None
Confidentiality (subsequent systems): None
Integrity (subsequent systems): None
Availability (subsequent systems): None

CVSS 3.1 6.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Weakness

CWE-539: Use of Persistent Cookies Containing Sensitive Information

The web application uses persistent cookies, but the cookies contain sensitive information.

How to prevent it

Architecture and Design: Do not store sensitive information in persistent cookies.

References

Advisories

Packages

github.com/django/django

Timeline

May 5, 2026 Published
Oct 26, 2026 Last updated by the source
Oct 31, 2026 Latest EPSS score

Advisory	Severity	Why it's related
GHSA-q238-5cxm-5c9h Django GeoDjango vulnerable to denial of service through deeply nested geometry collections	Medium	Also affects django
GHSA-wvqv-fj8w-qmhm Django GeoDjango spatial lookups allow file writes and outbound requests through GDAL raster parsing	High	Also affects django
GHSA-8qcx-xf44-272x Django: DomainNameValidator permits newline characters that may enable HTTP header injection	Medium	Also affects django
GHSA-crhf-3pfg-w68w Django: GDALRaster may over-read heap memory when constructed from bytes	Medium	Also affects django
GHSA-3h9f-r86x-qvjx Django: cache middleware may expose private responses when unrelated request cookies are present	Medium	Also affects django
GHSA-8cjm-8mp7-r2xf Django: UpdateCacheMiddleware may disclose cached responses due to case-sensitive Cache-Control handling	Medium	Also affects django
GHSA-mm6v-q8q9-pgcf Django fails to prevent reuse of a partially-initialized connection after a failed `STARTTLS` handshake	Low	Also affects django
GHSA-h7pc-vwp9-298g Django: signed cookies are vulnerable to salt namespace collisions	Medium	Also affects django

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