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CVE-2026-33034PYSEC-2026-49BIT-DJANGO-2026-33034GHSA-933H-HP56-HF7M

Potential denial-of-service vulnerability in ASGI requests via memory upload limit bypass

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.0.4, 5.2.13, 4.2.30
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30. ASGI requests with a missing or understated `Content-Length` header could bypass the `DATA_UPLOAD_MAX_MEMORY_SIZE` limit when reading `HttpRequest.body`, allowing remote attackers to load an unbounded request body into memory. 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 Superior for reporting this issue.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • django

    From 6.0 · fixed in 6.0.4; From 5.2 · fixed in 5.2.13; From 4.2 · fixed in 4.2.30

  • djangoPyPI

    From 4.2 · fixed in 4.2.30; From 5.2 · fixed in 5.2.13; From 6.0 · fixed in 6.0.4

  • djangoPyPI

    From 6.0 · fixed in 6.0.4

  • djangoPyPI

    From 5.2 · fixed in 5.2.13

  • djangoPyPI

    From 4.2 · fixed in 4.2.30

References 3

docs.djangoproject.com

groups.google.com

djangoproject.com