Low severityOSV Advisory· Published Feb 3, 2026· Updated Feb 3, 2026
Potential denial-of-service vulnerability via repeated headers when using ASGI
CVE-2025-14550
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
DjangoPyPI | >= 6.0a1, < 6.0.2 | 6.0.2 |
DjangoPyPI | >= 5.2a1, < 5.2.11 | 5.2.11 |
DjangoPyPI | >= 4.2a1, < 4.2.28 | 4.2.28 |
Affected products
14- Range: 4.2, 4.2.1, 4.2.10, …
- osv-coords13 versionspkg:apk/chainguard/authentikpkg:apk/chainguard/authentik-fipspkg:apk/chainguard/awxpkg:apk/chainguard/label-studiopkg:bitnami/djangopkg:pypi/djangopkg:rpm/opensuse/python-asgiref&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python-Django4&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python-Django6&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python-Django&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/python-Django&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/python-Django&distro=openSUSE%20Tumbleweedpkg:rpm/suse/python-Django&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7
< 2025.12.1-r2+ 12 more
- (no CPE)range: < 2025.12.1-r2
- (no CPE)range: < 2025.12.1-r2
- (no CPE)range: < 24.6.1-r27
- (no CPE)range: < 1.22.0-r3
- (no CPE)range: >= 4.2.0, < 4.2.28
- (no CPE)range: >= 6.0a1, < 6.0.2
- (no CPE)range: < 3.11.1-1.1
- (no CPE)range: < 4.2.28-1.1
- (no CPE)range: < 6.0.2-1.1
- (no CPE)range: < 4.2.11-150600.3.47.1
- (no CPE)range: < 5.2.4-bp160.5.1
- (no CPE)range: < 5.2.11-1.1
- (no CPE)range: < 4.2.11-150600.3.47.1
Patches
Vulnerability mechanics
References
9- docs.djangoproject.com/en/dev/releases/security/mitrevendor-advisory
- github.com/advisories/GHSA-33mw-q7rj-mjwjghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-14550ghsaADVISORY
- www.djangoproject.com/weblog/2026/feb/03/security-releases/mitrevendor-advisory
- docs.djangoproject.com/en/dev/releases/securityghsaWEB
- github.com/django/django/commit/eb22e1d6d643360e952609ef562c139a100ea4ebghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-43.yamlghsaWEB
- groups.google.com/g/django-announceghsamailing-listWEB
- www.djangoproject.com/weblog/2026/feb/03/security-releasesghsaWEB
News mentions
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