CVE-2023-23969: debian debian_linux
Vulnerability summary
CVE-2023-23969 is a high (CVSS 7.5) vulnerability in debian debian_linux. EPSS estimates a 47.38% chance of exploitation in the next 30 days, higher than 98.8% of scored vulnerabilities.
Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 47% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 12 · Related 9Timeline
- 01-02-2023PublishedVulnerability first disclosed.
- 27-03-2025Last modifiedVulnerability 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
7 scores · 6 sources · 2 versions- OSV · PypiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
47.38%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
No change 0.00 pp
From 47.38% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- python-django< 1:1.11.29-1+deb10u6 | < 3:3.2.17-1
- debian_linuxEOL10.0
Alpine1 product
- py3-django< 3.2.17-r0
Djangoproject1 product
- django≥ 3.2, < 3.2.17 | ≥ 4.0, < 4.0.9 | ≥ 4.1, < 4.1.6
Opensuse1 product
- python-Django&distro=openSUSE Tumbleweed< 4.1.6-1.1
PyPI1 product
- django≥ 3.2a1, < 3.2.17 | ≥ 4.0a1, < 4.0.9 | ≥ 4.1a1, < 4.1.6 | ≥ 4.1, < 4.1.6
Ubuntu1 product
- python-djangoAll versions (No fix recorded) | < 1:1.11.11-1ubuntu1.19 | < 2:2.2.12-1ubuntu0.15 | < 2:3.2.12-2ubuntu1.4 | < 1.8.7-1ubuntu5.15+esm6
6 vendors · 7 products
References
27 links- www.djangoproject.com/weblog/2023/feb/01/security-releases/ARTICLEREPORTRelease NotesVendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
Show all 27 references
- github.com/django/djangoPACKAGE