{"id":"CVE-2026-113593","aliases":["ALPINE-CVE-2026-113593","DEBIAN-CVE-2026-113593","EUVD-2026-116021","GHSA-rpcg-ffqj-qpjw","MGASA-2026-0591","UBUNTU-CVE-2026-113593","openSUSE-SU-2026:12502-1","openSUSE-SU-2026:12518-1","openSUSE-SU-2026:12519-1"],"status":"published","title":"Potential exposure of private data via empty and missing Vary headers","description":"An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19.\nThe `django.middleware.cache.UpdateCacheMiddleware` and the `django.views.decorators.cache.cache_page()` decorator generate identical cache keys for requests that omit a header listed in the response’s `Vary` header and requests that include that header with an empty value, potentially allowing remote attackers to access private data cached for another request.\nEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\nDjango would like to thank Andrew Gonzalez for reporting this issue.","severity":{"version":"4.0","score":2.3,"vector":"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","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00464,"percentile":0.40719,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-524"],"published":"2026-11-03T15:42:34Z","modified":"2026-11-12T06:00:03Z","fixes":[{"ecosystem":"Alpine:v3.24","package":"py3-django","fixed_in":["5.2.19-r0"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"python-django","fixed_in":["3:5.2.19-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.24","package":"py3-django","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.19-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"python-django","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3:3.2.19-1","3:3.2.19-1+deb12u1","3:3.2.19-1+deb12u1~bpo11+1","3:3.2.19-1+deb12u2","3:3.2.20-1","3:3.2.20-1.1","3:3.2.21-1","3:3.2.25-0+deb12u1","3:3.2.25-0+deb12u2","3:3.2.25-0+deb12u3","3:3.2.25-0+deb12u4","3:3.2.25-0+deb12u5","3:3.2.25-0+deb12u6","3:4.1-1","3:4.1.1-1","3:4.1.2-1","3:4.1.3-1","3:4.1.4-1","3:4.1.5-1","3:4.2-1","3:4.2.1-1","3:4.2.10-1","3:4.2.11-1","3:4.2.13-1","3:4.2.14-1","3:4.2.15-1","3:4.2.15-1~bpo12+1","3:4.2.16-1","3:4.2.17-1","3:4.2.17-2","3:4.2.18-1","3:4.2.18-1~bpo12+1","3:4.2.19-1","3:4.2.19-1~bpo12+1","3:4.2.2-1","3:4.2.20-1","3:4.2.20-1~bpo12+1","3:4.2.21-1","3:4.2.21-1~bpo12+1","3:4.2.22-1","3:4.2.23-1","3:4.2.24-1","3:4.2.25-1","3:4.2.25-2","3:4.2.26-1","3:4.2.27-1","3:4.2.27-2","3:4.2.28-1","3:4.2.29-1","3:4.2.3-1","3:4.2.30-1","3:4.2.4-1","3:4.2.5-1","3:4.2.5-2","3:4.2.6-1","3:4.2.8-1","3:4.2.9-1","3:4.2~alpha1-1","3:4.2~beta1-1","3:4.2~rc1-1","3:5.0-1","3:5.0.1-1","3:5.0.2-1","3:5.0.3-1","3:5.0.4-1","3:5.0.6-1","3:5.0~alpha1-1","3:5.0~rc1-1","3:5.1-1","3:5.1.1-1","3:5.1.2-1","3:5.1.3-1","3:5.1.4-1","3:5.1.5-1","3:5.1~alpha1-1","3:5.1~beta1-1","3:5.1~rc1-1","3:5.2-1","3:5.2.1-1","3:5.2.13-1","3:5.2.14-1","3:5.2.14-2","3:5.2.15-1","3:5.2.15-2","3:5.2.15-2~bpo13+1","3:5.2.16-1","3:5.2.16-1~bpo13+1","3:5.2.17-1","3:5.2.17-2","3:5.2.17-2~bpo13+1","3:5.2.18-1","3:5.2.18-2","3:5.2.19-1","3:5.2.2-1","3:5.2.3-1","3:5.2.4-1","3:5.2.5-1","3:5.2.6-1","3:5.2~alpha1-1","3:5.2~beta1-1","3:5.2~rc1-1","3:6.0-1","3:6.0.1-1","3:6.0.2-1","3:6.0.3-1","3:6.0.4-1","3:6.0.5-1","3:6.0.6-1","3:6.0~alpha1-1","3:6.0~beta1-1","3:6.0~rc1-1","3:6.1-1","3:6.1.1-1","3:6.1.2-1","3:6.1.3-1","3:6.1~beta1-1","3:6.1~rc1-1"]},{"source":"osv","ecosystem":"Debian:13","package":"python-django","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3:4.2.23-1","3:4.2.24-1","3:4.2.25-1","3:4.2.25-2","3:4.2.26-1","3:4.2.27-0+deb13u1","3:4.2.27-1","3:4.2.27-2","3:4.2.28-0+deb13u1","3:4.2.28-0+deb13u2","3:4.2.28-1","3:4.2.29-1","3:4.2.30-1","3:5.0-1","3:5.0.1-1","3:5.0.2-1","3:5.0.3-1","3:5.0.4-1","3:5.0.6-1","3:5.0~alpha1-1","3:5.0~rc1-1","3:5.1-1","3:5.1.1-1","3:5.1.2-1","3:5.1.3-1","3:5.1.4-1","3:5.1.5-1","3:5.1~alpha1-1","3:5.1~beta1-1","3:5.1~rc1-1","3:5.2-1","3:5.2.1-1","3:5.2.13-1","3:5.2.14-1","3:5.2.14-2","3:5.2.15-1","3:5.2.15-2","3:5.2.15-2~bpo13+1","3:5.2.16-1","3:5.2.16-1~bpo13+1","3:5.2.17-1","3:5.2.17-2","3:5.2.17-2~bpo13+1","3:5.2.18-1","3:5.2.18-2","3:5.2.19-1","3:5.2.2-1","3:5.2.3-1","3:5.2.4-1","3:5.2.5-1","3:5.2.6-1","3:5.2~alpha1-1","3:5.2~beta1-1","3:5.2~rc1-1","3:6.0-1","3:6.0.1-1","3:6.0.2-1","3:6.0.3-1","3:6.0.4-1","3:6.0.5-1","3:6.0.6-1","3:6.0~alpha1-1","3:6.0~beta1-1","3:6.0~rc1-1","3:6.1-1","3:6.1.1-1","3:6.1.2-1","3:6.1.3-1","3:6.1~beta1-1","3:6.1~rc1-1"]},{"source":"osv","ecosystem":"Debian:14","package":"python-django","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:5.2.19-1"}]}],"versions":["3:4.2.23-1","3:4.2.24-1","3:4.2.25-1","3:4.2.25-2","3:4.2.26-1","3:4.2.27-1","3:4.2.27-2","3:4.2.28-1","3:4.2.29-1","3:4.2.30-1","3:5.0-1","3:5.0.1-1","3:5.0.2-1","3:5.0.3-1","3:5.0.4-1","3:5.0.6-1","3:5.0~alpha1-1","3:5.0~rc1-1","3:5.1-1","3:5.1.1-1","3:5.1.2-1","3:5.1.3-1","3:5.1.4-1","3:5.1.5-1","3:5.1~alpha1-1","3:5.1~beta1-1","3:5.1~rc1-1","3:5.2-1","3:5.2.1-1","3:5.2.13-1","3:5.2.14-1","3:5.2.14-2","3:5.2.15-1","3:5.2.15-2","3:5.2.15-2~bpo13+1","3:5.2.16-1","3:5.2.16-1~bpo13+1","3:5.2.17-1","3:5.2.17-2","3:5.2.17-2~bpo13+1","3:5.2.18-1","3:5.2.18-2","3:5.2.2-1","3:5.2.3-1","3:5.2.4-1","3:5.2.5-1","3:5.2.6-1","3:5.2~alpha1-1","3:5.2~beta1-1","3:5.2~rc1-1"]},{"source":"osv","ecosystem":"Mageia:10","package":"python-django","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.19-1.mga10"}]}],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"python-django","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.4-1ubuntu1","1.6-1","1.6.1-1","1.6.1-2","1.6.1-2ubuntu0.1","1.6.1-2ubuntu0.2","1.6.1-2ubuntu0.3","1.6.1-2ubuntu0.4","1.6.1-2ubuntu0.5","1.6.1-2ubuntu0.6","1.6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exposure of private data via empty and missing Vary headers","description":"An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19.\nThe `django.middleware.cache.UpdateCacheMiddleware` and the `django.views.decorators.cache.cache_page()` decorator generate identical cache keys for requests that omit a header listed in the response’s `Vary` header and requests that include that header with an empty value, potentially allowing remote attackers to access private data cached for another request.\nEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\nDjango would like to thank Andrew Gonzalez for reporting this issue.","status":"published","published":"2026-11-03T15:42:34.362Z","modified":"2026-11-03T18:26:21.601Z","cvss":[{"version":"4.0","score":2.3,"vector":"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","level":"low","assessor":"cna"},{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-524"],"updated_at":"2026-11-03T20:02:16.924578Z"}],"euvd":[{"id":"EUVD-2026-116021","description":"An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19.\nThe `django.middleware.cache.UpdateCacheMiddleware` and the `django.views.decorators.cache.cache_page()` decorator generate identical cache keys for requests that omit a header listed in the response’s `Vary` header and requests that include that header with an empty value, potentially allowing remote attackers to access private data cached for another request.\nEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\nDjango would like to thank Andrew Gonzalez for reporting this issue.","status":"published","published":"2026-11-03T15:42:34Z","modified":"2026-11-03T18:26:21Z","cvss":[{"version":"4.0","score":2.3,"vector":"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","level":"low"}],"updated_at":"2026-11-03T21:20:13.974366Z"}],"ghsa":[{"id":"GHSA-rpcg-ffqj-qpjw","title":"An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19.\nThe...","description":"An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19.\nThe `django.middleware.cache.UpdateCacheMiddleware` and the `django.views.decorators.cache.cache_page()` decorator generate identical cache keys for requests that omit a header listed in the response’s `Vary` header and requests that include that header with an empty value, potentially allowing remote attackers to access private data cached for another request.\nEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\nDjango would like to thank Andrew Gonzalez for reporting this issue.","status":"published","published":"2026-11-03T18:31:00Z","modified":"2026-11-03T18:31:05Z","cvss":[{"version":"4.0","score":2.3,"vector":"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","level":"low"},{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-524"],"updated_at":"2026-11-03T19:01:31.965978Z"}],"nvd":[{"id":"CVE-2026-113593","description":"An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19.\nThe `django.middleware.cache.UpdateCacheMiddleware` and the `django.views.decorators.cache.cache_page()` decorator generate identical cache keys for requests that omit a header listed in the response’s `Vary` header and requests that include that header with an empty value, potentially allowing remote attackers to access private data cached for another request.\nEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\nDjango would like to thank Andrew Gonzalez for reporting this issue.","status":"published","published":"2026-11-03T16:17:19.183Z","modified":"2026-11-03T19:17:53.89Z","cvss":[{"version":"4.0","score":2.3,"vector":"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","level":"low","assessor":"secondary"},{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low","assessor":"secondary"}],"cwes":["CWE-524"],"updated_at":"2026-11-03T22:58:51.822037Z"}],"osv":[{"id":"ALPINE-CVE-2026-113593","description":"An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19.\nThe `django.middleware.cache.UpdateCacheMiddleware` and the `django.views.decorators.cache.cache_page()` decorator generate identical cache keys for requests that omit a header listed in the response’s `Vary` header and requests that include that header with an empty value, potentially allowing remote attackers to access private data cached for another request.\nEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\nDjango would like to thank Andrew Gonzalez for reporting this issue.","status":"published","published":"2026-11-03T16:17:19.183Z","modified":"2026-11-04T09:30:02.894843636Z","cvss":[{"version":"4.0","score":2.3,"vector":"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","level":"low"}],"updated_at":"2026-11-04T09:34:03.871859Z"},{"id":"CVE-2026-113593","title":"Potential exposure of private data via empty and missing Vary headers","description":"An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19.\nThe `django.middleware.cache.UpdateCacheMiddleware` and the `django.views.decorators.cache.cache_page()` decorator generate identical cache keys for requests that omit a header listed in the response’s `Vary` header and requests that include that header with an empty value, potentially allowing remote attackers to access private data cached for another request.\nEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\nDjango would like to thank Andrew Gonzalez for reporting this issue.","status":"published","published":"2026-11-03T15:42:34.362Z","modified":"2026-11-11T17:27:07.939441394Z","cvss":[{"version":"4.0","score":2.3,"vector":"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","level":"low"}],"cwes":["CWE-524"],"updated_at":"2026-11-09T03:16:24.800471Z"},{"id":"DEBIAN-CVE-2026-113593","description":"An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19. The `django.middleware.cache.UpdateCacheMiddleware` and the `django.views.decorators.cache.cache_page()` decorator generate identical cache keys for requests that omit a header listed in the response’s `Vary` header and requests that include that header with an empty value, potentially allowing remote attackers to access private data cached for another request. Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected. Django would like to thank Andrew Gonzalez for reporting this issue.","status":"published","published":"2026-11-03T16:17:19.183Z","modified":"2026-11-09T14:00:08.33895438Z","cvss":[{"version":"4.0","score":2.3,"vector":"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","level":"low"}],"updated_at":"2026-11-09T14:31:39.434822Z"},{"id":"UBUNTU-CVE-2026-113593","description":"An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19. The `django.middleware.cache.UpdateCacheMiddleware` and the `django.views.decorators.cache.cache_page()` decorator generate identical cache keys for requests that omit a header listed in the response’s `Vary` header and requests that include that header with an empty value, potentially allowing remote attackers to access private data cached for another request. Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected. Django would like to thank Andrew Gonzalez for reporting this issue.","status":"published","published":"2026-11-03T16:17:00Z","modified":"2026-11-05T11:45:47.990652138Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low"},{"version":"4.0","score":2.3,"vector":"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","level":"low"}],"updated_at":"2026-11-05T13:30:15.321876Z"},{"id":"MGASA-2026-0591","title":"Updated python-django package fixes security vulnerabilities","description":"CVE-2026-108147: Potential memory exhaustion in `MultiPartParser` via\nbase64-encoded file upload\nCVE-2026-111211: Potential log injection via unescaped geometry form\nvalues\nCVE-2026-111362: Server-side request forgery via crs member of GeoJSON\ngeometries\nCVE-2026-113593: Potential exposure of private data via empty and\nmissing `Vary` headers\nCVE-2026-113733: Password hash disclosure to \"view only\" admin users\nwith custom user models\nCVE-2026-114582: Server-side request forgery via `SpatialReference`\nstring input\n","status":"published","published":"2026-11-12T05:47:45Z","modified":"2026-11-12T06:00:03.409443744Z","updated_at":"2026-11-12T06:33:22.541564Z"},{"id":"openSUSE-SU-2026:12502-1","title":"python313-Django4-4.2.30-7.1 on GA media","description":"These are all security issues fixed in the python313-Django4-4.2.30-7.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-11-09T00:00:00Z","modified":"2026-11-10T13:15:12.108588603Z","updated_at":"2026-11-10T13:29:51.103746Z"},{"id":"openSUSE-SU-2026:12518-1","title":"python313-Django-6.1.3-1.1 on GA media","description":"These are all security issues fixed in the python313-Django-6.1.3-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-11-10T00:00:00Z","modified":"2026-11-11T17:23:10.719402225Z","updated_at":"2026-11-11T17:47:15.466074Z"},{"id":"openSUSE-SU-2026:12519-1","title":"python313-Django5-5.2.19-1.1 on GA media","description":"These are all security issues fixed in the python313-Django5-5.2.19-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-11-10T00:00:00Z","modified":"2026-11-11T17:23:10.717216606Z","updated_at":"2026-11-11T17:47:15.466074Z"}]}}