CVE-2026-84429 Affecting python311-Django package, versions <4.2.11-150600.3.68.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.48% (42nd percentile)

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  • Snyk IDSNYK-SLES157-PYTHON311DJANGO-20875774
  • published13 Oct 2026
  • disclosed12 Oct 2026

Introduced: 12 Oct 2026

NewCVE-2026-84429  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 python311-Django to version 4.2.11-150600.3.68.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python311-Django package and not the python311-Django package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

An issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18. django.utils.http.parse_header_parameters() was subject to a potential denial-of-service attack due to quadratic time complexity when parsing a value with many separators inside a quoted parameter. An unauthenticated request could reach this parsing through headers such as Accept or Content-Type, for instance via the content negotiation performed by HttpRequest.accepts(). The per-call length limit does not bound the combined size of repeated headers. Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected. Django would like to thank Jisung Chae for reporting this issue.

CVSS Base Scores

version 3.1