{
  "id": "CVE-2024-53867",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2024-12-03T17:15:12.787",
  "lastModified": "2024-12-03T17:15:12.787",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Synapse is an open-source Matrix homeserver. The Sliding Sync feature on Synapse versions between 1.113.0rc1 and 1.120.0 can leak partial room state changes to users no longer in a room. Non-state events, like messages, are unaffected. This vulnerability is fixed in 1.120.1."
    },
    {
      "lang": "es",
      "value": " Synapse es un servidor dom\u00e9stico Matrix de c\u00f3digo abierto. La funci\u00f3n Sliding Sync de las versiones de Synapse entre 1.113.0rc1 y 1.120.0 puede filtrar cambios parciales del estado de la sala a usuarios que ya no est\u00e1n en la sala. Los eventos que no son de estado, como los mensajes, no se ven afectados. Esta vulnerabilidad se solucion\u00f3 en 1.120.1."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "security-advisories@github.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ]
  },
  "weaknesses": [
    {
      "source": "security-advisories@github.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-497"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-56w4-5538-8v8h",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/matrix-org/matrix-spec-proposals/pull/4186",
      "source": "security-advisories@github.com"
    }
  ]
}