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Fencer Intel
medium 5.3

CVE-2026-73228 json

Django REST framework: Potential bypass of Django `DATA_UPLOAD_MAX_MEMORY_SIZE` when parsing oversized JSON and urlencoded request bodies via DRF `request.data`

published 3mo ago modified 18d ago also EUVD-2026-56887 , GHSA-2m8g-3cmr-wg3w , PYSEC-2026-3827

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

Django REST framework is a toolkit for building Web APIs. Prior to 3.17.2, Django REST Framework's request.data parsing in rest_framework/request.py Request._parse() passes the underlying HttpRequest stream to JSONParser and FormParser for application/json and application/x-www-form-urlencoded bodies, bypassing Django's DATA_UPLOAD_MAX_MEMORY_SIZE protection and allowing oversized request bodies to consume additional memory and CPU. This issue is fixed in version 3.17.2.

Patch / fix

  • pypi djangorestframework 3.17.2
  • django-rest-framework django_rest_framework 3.17.2
  • encode django_rest_framework 3.17.2
  • djangorestframework Debian 14 3.18.1+ds1-1

debian advisories DEBIAN-CVE-2026-73228

  • python-djangorestframework openSUSE Tumbleweed 3.18.0-2.1

opensuse advisories openSUSE-SU-2026:11625-1

Is CVE-2026-73228 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-73228 updated cvss 5.3

djangorestframework: Django REST framework: Denial of Service via oversized request bodies

  • Red Hat Ansible Automation Platform 2 automation-controller 4.7.15-2.el9ap, ansible-automation-platform-24/hub-rhel8, ansible-automation-platform-25/hub-rhel8, ansible-automation-platform-26/hub-rhel9, ansible-automation-platform-27/hub-rhel9, python-djangorestframework 3.14.0-1.el9ap, +18 more
    affected: workaround, no fix available, no fix planned “No mitigation is currently available for this vulnerability. Customers are advised to apply the available update when it becomes available.”
  • Red Hat Discovery 2 discovery/discovery-server-rhel9 Red Hat Satellite 6 python3-djangorestframework, satellite/iop-advisor-backend-rhel9, python-djangorestframework 3.14.0-1.el9ap, tfm-pulpcore-python-djangorestframework 3.12.4-4.el7pc
    affected: workaround, no fix available “No mitigation is currently available for this vulnerability. Customers are advised to apply the available update when it becomes available.”
  • Red Hat Update Infrastructure 4 for Cloud Providers python-djangorestframework 3.14.0-1.el9ap
    affected: workaround, no fix planned “No mitigation is currently available for this vulnerability. Customers are advised to apply the available update when it becomes available.”
  • Red Hat Update Infrastructure 5 rhui5/rhua-rhel9
    affected: workaround, no fix available “No mitigation is currently available for this vulnerability. Customers are advised to apply the available update when it becomes available.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
2mo ago

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • github.com https://github.com/encode/django-rest-framework/security/advisories/GHSA-2m8g-3cmr-wg3w referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
GitHub 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected packages

ecosystem package affected fixed in
pypi djangorestframework
<3.17.2
3.17.2

Affected products

  • encode django-rest-framework

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of encode/django-rest-framework published their own advisory on GitHub. Reviewed sources take precedence over it.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.