CVE-2026-33033

EUVD-2026-19646
An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30.
`MultiPartParser` allows remote attackers to degrade performance by submitting multipart uploads with `Content-Transfer-Encoding: base64` including excessive whitespace.
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 Seokchan Yoon for reporting this issue.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 15%
Affected Products (NVD)
VendorProductVersion
djangoprojectdjango
4.2 ≤
𝑥
< 4.2.30
djangoprojectdjango
5.2 ≤
𝑥
< 5.2.13
djangoprojectdjango
6.0 ≤
𝑥
< 6.0.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
python-django
bookworm
no-dsa
bookworm (security)
vulnerable
bullseye
postponed
bullseye (security)
vulnerable
forky
3:4.2.30-1
fixed
sid
3:5.2.14-2
fixed
trixie
no-dsa
trixie (security)
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
python-django
bionic
Fixed 1:1.11.11-1ubuntu1.21+esm15
released
focal
Fixed 2:2.2.12-1ubuntu0.29+esm8
released
jammy
Fixed 2:3.2.12-2ubuntu1.26
released
noble
Fixed 3:4.2.11-1ubuntu1.15
released
questing
Fixed 3:5.2.4-1ubuntu2.4
released
resolute
Fixed 3:5.2.9-0ubuntu4
released
trusty
Fixed 1.6.11-0ubuntu1.3+esm11
released
xenial
Fixed 1.8.7-1ubuntu5.15+esm12
released