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[GHSA-8cjm-8mp7-r2xf] An issue was discovered in Django 5.2 before 5.2.15 and 6... #8618

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[GHSA-8cjm-8mp7-r2xf] An issue was discovered in Django 5.2 before 5.2.15 and 6... #8618

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48 changes: 42 additions & 6 deletions advisories/unreviewed/2026/06/GHSA-8cjm-8mp7-r2xf/GHSA-8cjm-8mp7-r2xf.json
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{
"schema_version": "1.4.0",
"id": "GHSA-8cjm-8mp7-r2xf",
"modified": "2026-06-03T15:30:43Z",
"modified": "2026-06-03T15:30:54Z",
"published": "2026-06-03T15:30:43Z",
"aliases": [
"CVE-2026-8404"
],
"summary": "Potential exposure of private data via case-sensitive Cache-Control directives in UpdateCacheMiddleware",
"details": "An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6.\n`django.middleware.cache.UpdateCacheMiddleware` in Django does not match `Cache-Control` response directives case-insensitively, which allows remote attackers to read responses that were incorrectly cached because their `Cache-Control` directives used uppercase or mixed-case values.\nEarlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.\nDjango would like to thank Ahmed Badawe for reporting this issue.",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.2"
},
{
"fixed": "5.2.15"
}
]
}
]
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.0"
},
{
"fixed": "6.0.6"
}
]
}
]
}
],
"affected": [],
"references": [
{
"type": "ADVISORY",
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