CVE-2023-23969
highpriority · attend · 47EPSS 0.474 · 99 %ileDEEURUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixedpython-django-0:3.2.18-1.0.1.el8ui.src as a component of RHUI 4 for RHEL 8redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2101 - Fixedpython39-django-0:3.2.18-1.0.1.el8ui.noarch as a component of RHUI 4 for RHEL 8redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2023:2101 - Fixedpython312-Django6-0:6.0-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython312-Django6-0:6.0-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython312-Django6-0:6.0-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython312-Django6-0:6.0-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython313-Django6-0:6.0-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython313-Django6-0:6.0-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython313-Django6-0:6.0-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython313-Django6-0:6.0-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.7–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (61)
Products and version ranges known to be affected.
- Red Hat Enterprise Linux Update Infrastructure (RHUI)all versionscert_bundDEcpe:/o:redhat:enterprise_linux:u
advisories (8)
Vendor and ecosystem advisories describing this.
- RHSA-2023:2101Red Hat Security Advisory: RHUI 4.4.0 release - Security Fixes, Bug Fixes, and Enhancements Update2023-05-03csaf · redhat_csafUS
An updated version of Red Hat Update Infrastructure (RHUI) is now available. RHUI 4.4 fixes several security and operational bugs, and introduces multiple new features.
- WID-SEC-W-2023-0262Django: Schwachstelle ermöglicht Denial of ServiceDeutsch2023-02-01csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Django, Debian Linux und Ubuntu Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.
- WID-SEC-W-2023-1143Red Hat Satellite: Mehrere SchwachstellenDeutsch2023-05-03csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Satellite ausnutzen, um beliebigen Programmcode auszuführen, Informationen offenzulegen, einen Cross-Site-Scripting-Angriff durchzuführen oder einen Denial of Service Zustand herbeizuführen.
- WID-SEC-W-2023-1424Xerox FreeFlow Print Server für Solaris: Mehrere SchwachstellenDeutsch2023-06-12csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um die Vertraulichkeit, Verfügbarkeit und Integrität des Systems zu gefährden.
- openSUSE-SU-2026:10005-1python312-Django6-6.0-1.1 on GA media2026-01-03csaf · suse_csafDE
python312-Django6-6.0-1.1 on GA media
- GHSA-q2jf-h9jm-m7p4Django contains Uncontrolled Resource Consumption via cached header2023-02-01ghsa · osvUS
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.
- BIT-django-2023-239692024-03-06vendor · osvUS
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.
- PYSEC-2023-122023-02-01vendor · osvUS
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.
also known as (8)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (26)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2023-23969cnnvd
- https://cxsecurity.com/cveshow/CVE-2023-23969/cnnvd
- https://docs.djangoproject.com/en/4.1/releases/security/cnnvd
- https://groups.google.com/forum/#!forum/django-announcecnnvd
- https://lists.debian.org/debian-lts-announce/2023/02/msg00000.htmlcnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HWY6DQWRVBALV73BPUVBXC3QIYUM24IK/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LTZVAKU5ALQWOKFTPISE257VCVIYGFQI/cnnvd
- https://packetstormsecurity.com/files/170831/Ubuntu-Security-Notice-USN-5837-2.htmlcnnvd
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