How severe is CVE-2026-33033?

CVE-2026-33033 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-33033 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33033?

CVE-2026-33033 affects Djangoproject Django. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33033?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-33033 have an EU (EUVD) identifier?

Yes. CVE-2026-33033 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19646.

When was CVE-2026-33033 published?

CVE-2026-33033 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-33033

CVE-2026-33033 is a medium-severity vulnerability in Djangoproject Django with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-407.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19646
Weakness: CWE-407
Affected product: Djangoproject Django
Published: 2026-04-07
Last modified: 2026-06-17

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. `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.

Frequently asked questions

What is CVE-2026-33033?: 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.
How severe is CVE-2026-33033?: CVE-2026-33033 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-33033 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33033?: CVE-2026-33033 affects Djangoproject Django. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33033?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33033 have an EU (EUVD) identifier?: Yes. CVE-2026-33033 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19646.
When was CVE-2026-33033 published?: CVE-2026-33033 was published on 2026-04-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*

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