CVE-2026-4277
Django vulnerable to privilege abuse in GenericInlineModelAdmin
9.8
CRITICAL
CVSS 3.1
EPSS 0.02%
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. Add permissions on inline model instances were not validated on submission of forged `POST` data in `GenericInlineModelAdmin`. 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 N05ec@LZU-DSLab for reporting this issue.
How to fix CVE-2026-4277
To remediate CVE-2026-4277, upgrade the affected package to a fixed version below.
- —upgrade to 4.2.30 or later
- —no fix listed
- —upgrade to 6.0.4 or later
- —upgrade to 4.2.30 or later
Is CVE-2026-4277 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- >= 4.2.0, < 4.2.30, >= 5.2.0, < 5.2.13, >= 6.0.0, < 6.0.4
- from 0
- >= 6.0, < 6.0.4
- >= 4.2, < 4.2.30, >= 5.2, < 5.2.13, >= 6.0, < 6.0.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |