CVE & CISA-KEV Catalog

CVE-2026-5766

MEDIUM
5.3
CVSS v3
NVD

Description

An issue was discovered in 6.0 before 6.0.5 and 5.2 before 5.2.14. ASGI requests with a missing or understated `Content-Length` header can bypass the `FILE_UPLOAD_MAX_MEMORY_SIZE` limit, potentially loading large files into memory and causing service degradation. As a reminder, Django expects a limit to be configured at the web server level rather than solely relying on `FILE_UPLOAD_MAX_MEMORY_SIZE`. 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 Kyle Agronick for reporting this issue.

CWE-130

How to fix

Remediation Available
python-djangoDebian
Fixed in:3:5.2.14-1CVE-2026-5766
python-djangoUbuntu
Fixed in:2:3.2.12-2ubuntu1.27USN-8232-1
Fixed in:3:4.2.11-1ubuntu1.16USN-8232-1
Fixed in:3:5.2.4-1ubuntu2.5USN-8232-1
python3-djangoUbuntu
Fixed in:2:3.2.12-2ubuntu1.27USN-8232-1
Fixed in:3:4.2.11-1ubuntu1.16USN-8232-1
Fixed in:3:5.2.4-1ubuntu2.5USN-8232-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.42%probability of exploitation in 30 days
34thpercentile

Low risk: more likely to be exploited than 34% of all known CVEs.

References

Third-Party Advisory1
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CVE-2026-5766 severity badge

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-07.