CVE-2026-3902High· 7.5▾ TwilightAn 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) t…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.4%
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.
django >= 4.2, < 4.2.30django >= 5.2, < 5.2.13django >= 6.0, < 6.0.4Upgrade past the affected range:
django 6.0.4Connected by shared product, vendor, weakness, or advisory.
CVE-2026-4277Critical· 9.8An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30. Add permissions on inline model instances were not validated on submission of forged `POST` data in `GenericInlineModelAdmin`. Earlier, unsupported D…
CVE-2024-39329Medium· 5.3An issue was discovered in Django 5.0 before 5.0.7 and 4.2 before 4.2.14
CVE-2025-59681High· 7.1An issue was discovered in Django 4.2 before 4.2.25, 5.1 before 5.1.13, and 5.2 before 5.2.7
CVE-2026-35192Medium· 6.5An issue was discovered in 6.0 before 6.0.5 and 5.2 before 5.2.14. Response headers do not vary on cookies if a session is not modified, but `SESSION_SAVE_EVERY_REQUEST` is `True`
CVE-2026-15830NoneAn issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8.
CVE-2026-53878Medium· 6.1Django: DomainNameValidator permits newline characters that may enable HTTP header injection