PYSEC-2026-198

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Import Source

https://github.com/pypa/advisory-database/blob/main/vulns/django/PYSEC-2026-198.yaml

JSON Data

https://api.test.osv.dev/v1/vulns/PYSEC-2026-198

Aliases

Published

2026-06-03T14:16:44.983Z

Modified

2026-08-10T11:00:04.112239843Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator

Summary

[none]

Details

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.

References

Affected packages

PyPI / django

Package

Name: django; View open source insights on deps.dev
Purl: pkg:pypi/django

Affected ranges

Type: ECOSYSTEM
Events: Introduced

5.2

Fixed

5.2.15

Introduced

6.0

Fixed

6.0.6

Affected versions

5.*

5.2

5.2.1

5.2.2

5.2.3

5.2.4

5.2.5

5.2.6

5.2.7

5.2.8

5.2.9

5.2.10

5.2.11

5.2.12

5.2.13

5.2.14

6.*

6.0

6.0.1

6.0.2

6.0.3

6.0.4

6.0.5

Database specific

source

"https://github.com/pypa/advisory-database/blob/main/vulns/django/PYSEC-2026-198.yaml"