HighFix available
python-django — security advisory
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.
- Products
- python-django
- Affected versions
- Not specified
- Fixed versions
- 3:3.2.17-1
- CVEs
- CVE-2023-23969
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:32 UTC · Revision 1
Source evidence
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.
osv:DEBIAN-CVE-2023-23969
python-django
Fixed versions: 3:3.2.17-1
python-django
Fixed versions: 3:3.2.17-1
python-django
Fixed versions: 3:3.2.17-1
Complete source record
{
"id": "d4a8ca686b24abc578d114d9f5f09112b7ea071d8467205bbfdddd730c2ac1b1",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-23969",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-23969",
"summary": "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.",
"evidence": "osv:DEBIAN-CVE-2023-23969",
"products": [
{
"name": {
"value": "python-django",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3:3.2.17-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python-django",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3:3.2.17-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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},
"prerequisites": [],
"fixed_versions": [
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"evidence": "/affected/2/ranges"
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],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2023-23969",
"aliases": [
"DEBIAN-CVE-2023-23969"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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"introduced": "0"
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{
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]
}
],
"package": {
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"purl": "pkg:deb/debian/python-django?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-23969.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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{
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],
"package": {
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"purl": "pkg:deb/debian/python-django?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-23969.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
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{
"fixed": "3:3.2.17-1"
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],
"package": {
"name": "python-django",
"purl": "pkg:deb/debian/python-django?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-23969.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:01:01.491227829Z",
"provider": "osv",
"upstream": [
"CVE-2023-23969"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-23969"
]
},
"related_cves": [
{
"value": "CVE-2023-23969",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 455291,
"published_at": "2023-02-01T19:15:08.763+00:00"
}