CVE-2023-23969

Aliases:GHSA-q2jf-h9jm-m7p4BIT-django-2023-23969PYSEC-2023-12
Advisory lineage Upstream: 0 Downstream: 16
Modified
Published: 01 Feb 2023, 00:00
Last modified:27 Mar 2025, 14:17

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
5.08% LOW
5% probability -1.01%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 Feb 2023, 00:00
Published
Vulnerability first disclosed
27 Mar 2025, 14:17
Last Modified
Vulnerability information updated

Description

In Django 3.2 before 3.2.17, 4.0 before 4.0.9, and 4.1 before 4.1.6, the parsed values of Accept-Language headers are cached in order to avoid repetitive parsing. This leads to a potential denial-of-service vector via excessive memory usage if the raw value of Accept-Language headers is very large.

CVSS Metrics

  • v4.0•HIGH•Score: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 5.08%• Percentile: 90%

Techniques & Countermeasures

  • CWE-770•Allocation of Resources Without Limits or Throttling

    The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Affected Systems

  • debian•debian_linux

    10.0

  • djangoproject•django

    ≥ 3.2, < 3.2.17 | ≥ 4.0, < 4.0.9 | ≥ 4.1, < 4.1.6

  • PyPI•django

    ≥ 3.2a1, < 3.2.17 | ≥ 4.0a1, < 4.0.9 | ≥ 4.1a1, < 4.1.6 | ≥ 4.1, < 4.1.6

References (19)