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7.5
HIGH CVSS 3.1
CVE-2023-23969
Django Language Header Cache Denial-of-Service
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.

INFO

Published Date :

Feb. 1, 2023, 7:15 p.m.

Last Modified :

March 27, 2025, 3:15 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2023-23969 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Djangoproject django
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Upgrade Django packages to address a denial-of-service vulnerability.
  • Update the affected Django packages.
  • Upgrade to a patched version.
Public PoC/Exploit Available at Github

CVE-2023-23969 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-23969.

URL Resource
https://docs.djangoproject.com/en/4.1/releases/security/ Patch Vendor Advisory
https://groups.google.com/forum/#%21forum/django-announce
https://lists.debian.org/debian-lts-announce/2023/02/msg00000.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWY6DQWRVBALV73BPUVBXC3QIYUM24IK/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LTZVAKU5ALQWOKFTPISE257VCVIYGFQI/
https://security.netapp.com/advisory/ntap-20230302-0007/
https://www.djangoproject.com/weblog/2023/feb/01/security-releases/ Release Notes Vendor Advisory
https://docs.djangoproject.com/en/4.1/releases/security/ Patch Vendor Advisory
https://groups.google.com/forum/#%21forum/django-announce
https://lists.debian.org/debian-lts-announce/2023/02/msg00000.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWY6DQWRVBALV73BPUVBXC3QIYUM24IK/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LTZVAKU5ALQWOKFTPISE257VCVIYGFQI/
https://security.netapp.com/advisory/ntap-20230302-0007/
https://www.djangoproject.com/weblog/2023/feb/01/security-releases/ Release Notes Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-23969 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-23969 weaknesses.

CAPEC-125: Flooding Flooding CAPEC-130: Excessive Allocation Excessive Allocation CAPEC-147: XML Ping of the Death XML Ping of the Death CAPEC-197: Exponential Data Expansion Exponential Data Expansion CAPEC-229: Serialized Data Parameter Blowup Serialized Data Parameter Blowup CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-469: HTTP DoS HTTP DoS CAPEC-482: TCP Flood TCP Flood CAPEC-486: UDP Flood UDP Flood CAPEC-487: ICMP Flood ICMP Flood CAPEC-488: HTTP Flood HTTP Flood CAPEC-489: SSL Flood SSL Flood CAPEC-490: Amplification Amplification CAPEC-491: Quadratic Data Expansion Quadratic Data Expansion CAPEC-493: SOAP Array Blowup SOAP Array Blowup CAPEC-494: TCP Fragmentation TCP Fragmentation CAPEC-495: UDP Fragmentation UDP Fragmentation CAPEC-496: ICMP Fragmentation ICMP Fragmentation CAPEC-528: XML Flood XML Flood

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
DMontgomery40/plugin-vulnerability-scanner

A security vulnerability scanner for plugin architectures, focusing on memory, filesystem, and plugin system vulnerabilities.

HTML JavaScript CSS

Updated: 9 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Nov. 26, 2024, 9:14 p.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-23969 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-23969 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Mar. 27, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-770
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://docs.djangoproject.com/en/4.1/releases/security/
    Added Reference https://groups.google.com/forum/#%21forum/django-announce
    Added Reference https://lists.debian.org/debian-lts-announce/2023/02/msg00000.html
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWY6DQWRVBALV73BPUVBXC3QIYUM24IK/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LTZVAKU5ALQWOKFTPISE257VCVIYGFQI/
    Added Reference https://security.netapp.com/advisory/ntap-20230302-0007/
    Added Reference https://www.djangoproject.com/weblog/2023/feb/01/security-releases/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://groups.google.com/forum/#%21forum/django-announce [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWY6DQWRVBALV73BPUVBXC3QIYUM24IK/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LTZVAKU5ALQWOKFTPISE257VCVIYGFQI/ [No types assigned]
    Removed Reference MITRE https://groups.google.com/forum/#!forum/django-announce
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/HWY6DQWRVBALV73BPUVBXC3QIYUM24IK/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/LTZVAKU5ALQWOKFTPISE257VCVIYGFQI/
  • CVE Modified by [email protected]

    Apr. 28, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/LTZVAKU5ALQWOKFTPISE257VCVIYGFQI/ [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 28, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/HWY6DQWRVBALV73BPUVBXC3QIYUM24IK/ [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 02, 2023

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20230302-0007/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Feb. 08, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://docs.djangoproject.com/en/4.1/releases/security/ No Types Assigned https://docs.djangoproject.com/en/4.1/releases/security/ Patch, Vendor Advisory
    Changed Reference Type https://groups.google.com/forum/#!forum/django-announce No Types Assigned https://groups.google.com/forum/#!forum/django-announce Mailing List, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2023/02/msg00000.html No Types Assigned https://lists.debian.org/debian-lts-announce/2023/02/msg00000.html Mailing List, Third Party Advisory
    Changed Reference Type https://www.djangoproject.com/weblog/2023/feb/01/security-releases/ No Types Assigned https://www.djangoproject.com/weblog/2023/feb/01/security-releases/ Release Notes, Vendor Advisory
    Added CWE NIST CWE-770
    Added CPE Configuration OR *cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* versions from (including) 3.2 up to (excluding) 3.2.17 *cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* versions from (including) 4.0 up to (excluding) 4.0.9 *cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* versions from (including) 4.1 up to (excluding) 4.1.6
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2023/02/msg00000.html [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

2.20 }} 0.21%

score

0.83715

percentile