CVE-2025-31485: Api platform/graphql GraphQL Grant On A Property Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-428q-q3vv-3fq3",
  "modified" : "2025-08-29T21:08:09Z",
  "published" : "2025-04-04T14:19:42Z",
  "aliases" : [ "CVE-2025-31485" ],
  "summary" : "GraphQL grant on a property might be cached with different objects",
  "details" : "### Original message:\n\nI found an issue with security grants on on properties in the GraphQL ItemNormalizer:\n\nIf you use something like `#[ApiProperty(security: 'is_granted(\"PROPERTY_READ\", [object, property])')]` on a member of an entity, the grant gets cached and is only evaluated once, even if the `object` in question is a different one.\n\nThere is the `ApiPlatform\\GraphQl\\Serializer\\ItemNormalizer::isCacheKeySafe()` method that seems to be intended to prevent this: https://github.com/api-platform/core/blob/88f5ac50d20d6510686a7552310cc567fcca45bf/src/GraphQl/Serializer/ItemNormalizer.php#L160-L164  \nand in its usage on line 90 it does indeed not create a cache key, but the `parent::normalize()` that is called afterwards still creates the cache key and causes the issue.\n\n### Impact\n\nIt grants access to properties that it should not.\n\n### Workarounds\n\nOverride the ItemNormalizer.\n\nPatched at: https://github.com/api-platform/core/commit/7af65aad13037d7649348ee3dcd88e084ef771f8",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "api-platform/graphql"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0-alpha.1"
      }, {
        "fixed" : "4.0.22"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "api-platform/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0-alpha.1"
      }, {
        "fixed" : "4.0.22"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "api-platform/graphql"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.4.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "api-platform/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.4.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "api-platform/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.1.0-alpha.1"
      }, {
        "fixed" : "4.1.5"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "api-platform/graphql"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.1.0-alpha.1"
      }, {
        "fixed" : "4.1.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/api-platform/core/security/advisories/GHSA-428q-q3vv-3fq3"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-31485"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/api-platform/core/commit/7af65aad13037d7649348ee3dcd88e084ef771f8"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/api-platform/core/commit/cba3acfbd517763cf320167250c5bed6d569696a"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/api-platform/core/CVE-2025-31485.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/api-platform/graphql/CVE-2025-31485.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/api-platform/core"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/api-platform/core/releases/tag/v3.4.17"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-696" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-04T14:19:42Z",
    "nvd_published_at" : "2025-04-03T20:15:25Z"
  }
}