CVE-2023-23969
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…
- 7.5HighCVSS base score
- 47.4%Exploitation in 30 daysEPSS · top 1.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By mitre
- 12 days later
· 12 days later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 47.4% · top 1.1% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIDjangoGHSA-q2jf-h9jm-m7p4 (opens in a new tab)
References
References7
- https://groups.google.com/forum/#%21forum/django-announce (opens in a new tab)x_transferred
- https://docs.djangoproject.com/en/4.1/releases/security/ (opens in a new tab)x_transferred
- https://www.djangoproject.com/weblog/2023/feb/01/security-releases/ (opens in a new tab)x_transferred
- [debian-lts-announce] 20230201 [SECURITY] [DLA 3306-1] python-django security update (opens in a new tab)mailing-listx_transferred
- https://security.netapp.com/advisory/ntap-20230302-0007/ (opens in a new tab)x_transferred
- FEDORA-2023-8fed428c5e (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2023-a53ab7c969 (opens in a new tab)vendor-advisoryx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-0066 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-q2jf-h9jm-m7p4 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-23969)Record last updated .