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CVE-2026-6873

Estado: AnalizadaBaja (2.3)—

An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. `django.http.HttpRequest.get_signed_cookie` in Django uses a non-injective salt derivation (concatenating the cookie name and salt argument), which allows a remote attacker to use a cookie in a context different from the one where it was signed, via distinct `(name, salt)` pairs that produce the same concatenation. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Peng Zhou for reporting this issue.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Djangoproject — Django

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-6873",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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              "automatable": "no"
            },
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-06-03T15:43:52.491634Z"
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "Automatable": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
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          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
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          "privilegesRequired": "LOW",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
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          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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      "affectedData": [
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          "repo": "https://github.com/django/django/",
          "vendor": "djangoproject",
          "product": "Django",
          "versions": [
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              "status": "affected",
              "version": "6.0",
              "lessThan": "6.0.6",
              "versionType": "python"
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          "packageName": "django",
          "collectionURL": "https://pypi.org/project/Django/",
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  "published": "2026-06-03T14:16:46.483",
  "references": [
    {
      "url": "https://docs.djangoproject.com/en/dev/releases/security/",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
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    },
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      "url": "https://www.djangoproject.com/weblog/2026/jun/03/security-releases/",
      "tags": [
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        "Vendor Advisory"
      ],
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92",
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15.\n`django.http.HttpRequest.get_signed_cookie` in Django uses a non-injective salt derivation (concatenating the cookie name and salt argument), which allows a remote attacker to use a cookie in a context different from the one where it was signed, via distinct `(name, salt)` pairs that produce the same concatenation.\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 Peng Zhou for reporting this issue."
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en Django 6.0 anterior a 6.0.6 y 5.2 anterior a 5.2.15.\n'django.http.HttpRequest.get_signed_cookie' en Django utiliza una derivación de sal no inyectiva (concatenando el nombre de la cookie y el argumento de sal), lo que permite a un atacante remoto usar una cookie en un contexto diferente de aquel donde fue firmada, a través de pares '(name, salt)' distintos que producen la misma concatenación.\nSeries de Django anteriores y no compatibles (como 5.0.x, 4.1.x y 3.2.x) no fueron evaluadas y también podrían estar afectadas.\nDjango desea agradecer a Peng Zhou por informar sobre este problema."
    }
  ],
  "lastModified": "2026-07-21T19:10:00.107",
  "configurations": [
    {
      "nodes": [
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}