{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-53867",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2024-11-22T17:30:02.145Z",
        "datePublished": "2024-12-03T16:52:01.596Z",
        "dateUpdated": "2024-12-03T19:07:19.919Z"
    },
    "containers": {
        "cna": {
            "title": "Synapse Matrix has a partial room state leak via Sliding Sync",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-497",
                            "lang": "en",
                            "description": "CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 4.3,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/element-hq/synapse/security/advisories/GHSA-56w4-5538-8v8h",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-56w4-5538-8v8h"
                },
                {
                    "name": "https://github.com/matrix-org/matrix-spec-proposals/pull/4186",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/matrix-org/matrix-spec-proposals/pull/4186"
                }
            ],
            "affected": [
                {
                    "vendor": "element-hq",
                    "product": "synapse",
                    "versions": [
                        {
                            "version": ">= 1.113.0rc1, < 1.120.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2024-12-03T16:52:01.596Z"
            },
            "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."
                }
            ],
            "source": {
                "advisory": "GHSA-56w4-5538-8v8h",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-12-03T19:07:06.315341Z",
                                "id": "CVE-2024-53867",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-12-03T19:07:19.919Z"
                }
            }
        ]
    }
}