CVE-2026-113593

{
  "id": "CVE-2026-113593",
  "sourceIdentifier": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92",
  "published": "2026-11-03T16:17:19.183",
  "lastModified": "2026-11-03T16:17:19.330",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "affected": [
    {
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92",
      "affectedData": [
        {
          "vendor": "djangoproject",
          "product": "Django",
          "defaultStatus": "unaffected",
          "collectionURL": "https://pypi.org/project/Django/",
          "packageName": "django",
          "repo": "https://github.com/django/django/",
          "versions": [
            {
              "version": "6.1",
              "lessThan": "6.1.3",
              "versionType": "python",
              "status": "affected"
            },
            {
              "version": "6.1.3",
              "versionType": "python",
              "status": "unaffected"
            },
            {
              "version": "6.0",
              "lessThan": "6.0.10",
              "versionType": "python",
              "status": "affected"
            },
            {
              "version": "6.0.10",
              "versionType": "python",
              "status": "unaffected"
            },
            {
              "version": "5.2",
              "lessThan": "5.2.19",
              "versionType": "python",
              "status": "affected"
            },
            {
              "version": "5.2.19",
              "versionType": "python",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92",
        "type": "Secondary",
        "cvssData": {
          "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/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",
          "baseScore": 2.3,
          "baseSeverity": "LOW",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "NONE",
          "userInteraction": "PASSIVE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92",
        "type": "Secondary",
        "cvssData": {
          "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",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 1.4
      }
    ]
  },
  "weaknesses": [
    {
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-524"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://docs.djangoproject.com/en/dev/releases/security/",
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
    },
    {
      "url": "https://github.com/django/django/commit/2006a2b068766bf332f1afcc32b7614d8e5759a2",
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
    },
    {
      "url": "https://github.com/django/django/commit/55e2e009b4f3996e5c55af7b22a8c41eb826e892",
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
    },
    {
      "url": "https://github.com/django/django/commit/9007fecd3633cfd90b093ebe106af564347c8aee",
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
    },
    {
      "url": "https://github.com/django/django/commit/c0b7e5e4e4546e8ddc58262f1945938bb9d9ac2d",
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
    },
    {
      "url": "https://groups.google.com/g/django-announce",
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
    },
    {
      "url": "https://www.djangoproject.com/weblog/2026/nov/03/security-releases/",
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
    }
  ]
}