CVE-2026-84429
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Potential denial-of-service vulnerability in HTTP header parsing
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Django
- Vendor
- djangoproject
- Product
- Django
- Platforms
- Unknown
- Default status
unaffected- Package
- django
- Package collection
- https://pypi.org/project/Django/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.1 | affected | python | 6.1.2 | Unavailable | None listed |
| 6.1.2 | unaffected | python | Unavailable | Unavailable | None listed |
| 6.0 | affected | python | 6.0.9 | Unavailable | None listed |
| 6.0.9 | unaffected | python | Unavailable | Unavailable | None listed |
| 5.2 | affected | python | 5.2.18 | Unavailable | None listed |
| 5.2.18 | unaffected | python | Unavailable | Unavailable | None listed |