Bug 2436341 (CVE-2025-14550)

Summary:	CVE-2025-14550 Django: Django: Denial of Service via crafted request with duplicate headers
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	anthomas, brasmith, caswilli, cmyers, cochase, dnakabaa, dranck, dschmidt, eglynn, ehelms, erezende, ggainey, jjoyce, jlanda, jmitchel, jschluet, juwatts, jwong, kaycoth, kshier, lbrazdil, lcouzens, lhh, mattdavi, mburns, mgarciac, mhulan, mminar, nmoumoul, omaciel, osousa, pbohmill, pcreech, rbiba, rchan, simaishi, smallamp, smcdonal, sskracic, stcannon, teagle, tmalecek, tpfromme, ttakamiy, yguenane
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in Django. A remote attacker can exploit this vulnerability by sending a crafted request containing multiple duplicate headers to the ASGIRequest component. This can lead to a potential Denial of Service (DoS), making the affected system unavailable to legitimate users.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2436701, 2436695, 2436697, 2436704, 2436707, 2436720
Bug Blocks:

Description OSIDB Bzimport 2026-02-03 15:01:35 UTC

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28.
`ASGIRequest` allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers.
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 Jiyong Yang for reporting this issue.

Comment 5 errata-xmlrpc 2026-03-06 10:13:53 UTC

This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.6 for RHEL 9
  Red Hat Ansible Automation Platform 2.6 for RHEL 10

Via RHSA-2026:3958 https://access.redhat.com/errata/RHSA-2026:3958

Comment 6 errata-xmlrpc 2026-03-06 10:56:06 UTC

This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.5 for RHEL 8
  Red Hat Ansible Automation Platform 2.5 for RHEL 9

Via RHSA-2026:3959 https://access.redhat.com/errata/RHSA-2026:3959

Comment 7 errata-xmlrpc 2026-03-26 20:25:48 UTC

This issue has been addressed in the following products:

  Red Hat Satellite 6.17 for RHEL 9

Via RHSA-2026:5970 https://access.redhat.com/errata/RHSA-2026:5970

Comment 8 errata-xmlrpc 2026-03-26 20:26:46 UTC

This issue has been addressed in the following products:

  Red Hat Satellite 6.16 for RHEL 8
  Red Hat Satellite 6.16 for RHEL 9

Via RHSA-2026:5971 https://access.redhat.com/errata/RHSA-2026:5971