{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-8404",
        "assignerOrgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92",
        "state": "PUBLISHED",
        "assignerShortName": "DSF",
        "dateReserved": "2026-05-12T15:06:18.803Z",
        "datePublished": "2026-06-03T13:16:29.593Z",
        "dateUpdated": "2026-06-03T15:46:40.439Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92",
                "shortName": "DSF",
                "dateUpdated": "2026-06-03T13:16:29.593Z"
            },
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-178",
                            "description": "CWE-178: Improper Handling of Case Sensitivity",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-204",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-204: Lifting Sensitive Data Embedded in Cache"
                        }
                    ]
                }
            ],
            "title": "Potential exposure of private data via case-sensitive Cache-Control directives in UpdateCacheMiddleware",
            "metrics": [
                {
                    "other": {
                        "content": {
                            "value": "low",
                            "namespace": "https://docs.djangoproject.com/en/dev/internals/security/#security-issue-severity-levels"
                        },
                        "type": "Django severity rating"
                    }
                },
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N",
                        "baseScore": 3.1,
                        "baseSeverity": "LOW"
                    }
                },
                {
                    "cvssV4_0": {
                        "version": "4.0",
                        "vectorString": "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",
                        "baseScore": 2.3,
                        "baseSeverity": "LOW"
                    }
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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.",
                    "supportingMedia": [
                        {
                            "type": "text/html",
                            "base64": false,
                            "value": "<p>An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6.</p><p><code>django.middleware.cache.UpdateCacheMiddleware</code> in Django does not match <code>Cache-Control</code> response directives case-insensitively, which allows remote attackers to read responses that were incorrectly cached because their <code>Cache-Control</code> directives used uppercase or mixed-case values.</p><p>Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.</p><p>Django would like to thank Ahmed Badawe for reporting this issue.</p>"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "collectionURL": "https://pypi.org/project/Django/",
                    "defaultStatus": "unaffected",
                    "packageName": "django",
                    "product": "Django",
                    "repo": "https://github.com/django/django/",
                    "vendor": "djangoproject",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "6.0",
                            "lessThan": "6.0.6",
                            "versionType": "python"
                        },
                        {
                            "status": "unaffected",
                            "version": "6.0.6",
                            "versionType": "python"
                        },
                        {
                            "status": "affected",
                            "version": "5.2",
                            "lessThan": "5.2.15",
                            "versionType": "python"
                        },
                        {
                            "status": "unaffected",
                            "version": "5.2.15",
                            "versionType": "python"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://docs.djangoproject.com/en/dev/releases/security/",
                    "name": "Django security archive",
                    "tags": [
                        "vendor-advisory"
                    ]
                },
                {
                    "url": "https://groups.google.com/g/django-announce",
                    "name": "Django releases announcements",
                    "tags": [
                        "mailing-list"
                    ]
                },
                {
                    "url": "https://www.djangoproject.com/weblog/2026/jun/03/security-releases/",
                    "name": "Django security releases issued: 6.0.6 and 5.2.15",
                    "tags": [
                        "vendor-advisory"
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "reporter",
                    "value": "Ahmed Badawe"
                },
                {
                    "lang": "en",
                    "type": "remediation developer",
                    "value": "Jake Howard"
                },
                {
                    "lang": "en",
                    "type": "coordinator",
                    "value": "Natalia Bidart"
                }
            ],
            "timeline": [
                {
                    "lang": "en",
                    "time": "2026-05-06T00:00:00.000Z",
                    "value": "Initial report received."
                },
                {
                    "lang": "en",
                    "time": "2026-05-12T00:00:00.000Z",
                    "value": "Vulnerability confirmed."
                },
                {
                    "lang": "en",
                    "time": "2026-06-03T08:00:00.000Z",
                    "value": "Security release issued."
                }
            ],
            "datePublic": "2026-06-03T08:00:00.000Z",
            "source": {
                "discovery": "EXTERNAL"
            },
            "x_generator": {
                "engine": "cvelib 1.8.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-03T15:46:33.911128Z",
                                "id": "CVE-2026-8404",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-03T15:46:40.439Z"
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}