Skip to content
fr Sign in
Not rated

CVE-2026-3902 An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30

Description

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.

Affected products and versions

Product Affected versions Fixed in
Django 6.0 6.0 → < 6.0.4 6.0.4
Django 5.2 5.2 → < 5.2.13 5.2.13
Django 4.2 4.2 → < 4.2.30 4.2.30

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Django

The 62 CVEs of Django →
CVE-2026-114582 An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19 5.3 Medium CVE-2026-113733 An issue was discovered in Django 6.1 before 6.1.3 and 6.0 before 6.0.10 2.2 Low CVE-2026-113593 An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19 3.1 Low CVE-2026-111362 An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19 5.3 Medium
Track this CVE