{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-35193", "assignerOrgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "state": "PUBLISHED", "assignerShortName": "DSF", "dateReserved": "2026-04-01T18:21:23.779Z", "datePublished": "2026-06-03T13:16:38.456Z", "dateUpdated": "2026-06-03T13:16:38.456Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "shortName": "DSF", "dateUpdated": "2026-06-03T13:16:38.456Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-524", "description": "CWE-524: Use of Cache Containing Sensitive Information", "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 missing Vary: Authorization 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 add `Authorization` to the `Vary` response header for requests bearing that header without `Cache-Control: public`, which allows remote attackers to read private cached responses via unauthenticated requests to the same URL.\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 Shai Berger 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 add <code>Authorization</code> to the <code>Vary</code> response header for requests bearing that header without <code>Cache-Control: public</code>, which allows remote attackers to read private cached responses via unauthenticated requests to the same URL.</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 Shai Berger 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": "Shai Berger"}, {"lang": "en", "type": "remediation developer", "value": "Jacob Walls"}, {"lang": "en", "type": "coordinator", "value": "Natalia Bidart"}], "timeline": [{"lang": "en", "time": "2026-03-24T00:00:00.000Z", "value": "Initial report received."}, {"lang": "en", "time": "2026-04-28T00:00:00.000Z", "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": "INTERNAL"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

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