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.

Project Subscriptions

No data.

Advisories
Source ID Title
Github GHSA Github GHSA GHSA-33mw-q7rj-mjwj Django has Inefficient Algorithmic Complexity
Ubuntu USN Ubuntu USN USN-8009-1 Django vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 04 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-167
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 03 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 03 Feb 2026 15:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Potential denial-of-service vulnerability via repeated headers when using ASGI
Weaknesses CWE-407
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: DSF

Published:

Updated: 2026-02-03T16:27:38.976Z

Reserved: 2025-12-11T20:08:21.400Z

Link: CVE-2025-14550

cve-icon Vulnrichment

Updated: 2026-02-03T16:27:35.553Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-03T15:16:11.750

Modified: 2026-02-03T17:15:57.603

Link: CVE-2025-14550

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-02-03T14:38:15Z

Links: CVE-2025-14550 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses