CVE-2026-3902
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)
ASGI header spoofing via underscore/hyphen conflation
An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30. `ASGIRequest` allows a remote attacker to spoof headers by exploiting an ambiguous mapping of two header variants (with hyphens or with underscores) to a single version with underscores. 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 Tarek Nakkouch 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) |
|---|---|---|---|---|---|
| 6.0 | affected | semver | 6.0.4 | Unavailable | None listed |
| 6.0.4 | unaffected | semver | Unavailable | Unavailable | None listed |
| 5.2 | affected | semver | 5.2.13 | Unavailable | None listed |
| 5.2.13 | unaffected | semver | Unavailable | Unavailable | None listed |
| 4.2 | affected | semver | 4.2.30 | Unavailable | None listed |
| 4.2.30 | unaffected | semver | Unavailable | Unavailable | None listed |