{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-63639",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-07-17T14:11:15.482Z",
        "datePublished": "2026-08-18T14:23:52.508Z",
        "dateUpdated": "2026-08-19T03:56:15.092Z"
    },
    "containers": {
        "cna": {
            "title": "Valkey: UAF in stream deserialization may lead to remote code execution",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-416",
                            "lang": "en",
                            "description": "CWE-416: Use After Free",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 8.8,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/valkey-io/valkey/security/advisories/GHSA-mvcj-73cw-22m4",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/valkey-io/valkey/security/advisories/GHSA-mvcj-73cw-22m4"
                },
                {
                    "name": "https://github.com/valkey-io/valkey/pull/4073",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/valkey-io/valkey/pull/4073"
                },
                {
                    "name": "https://github.com/valkey-io/valkey/commit/06bc7768fe609f2054e69ccedefe7628f5675da9",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/valkey-io/valkey/commit/06bc7768fe609f2054e69ccedefe7628f5675da9"
                },
                {
                    "name": "https://github.com/valkey-io/valkey/commit/509cb3c74e8cbc9c0498ebe8b6c93dcd605e7271",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/valkey-io/valkey/commit/509cb3c74e8cbc9c0498ebe8b6c93dcd605e7271"
                },
                {
                    "name": "https://github.com/valkey-io/valkey/commit/98465eaffe3f95524a5046318bfbc4bdb9798291",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/valkey-io/valkey/commit/98465eaffe3f95524a5046318bfbc4bdb9798291"
                },
                {
                    "name": "https://github.com/valkey-io/valkey/commit/e95911d4d65be8789fa3705f44d7ed1e65378445",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/valkey-io/valkey/commit/e95911d4d65be8789fa3705f44d7ed1e65378445"
                },
                {
                    "name": "https://github.com/valkey-io/valkey/commit/f8d2027e8d4df790ac04974bf606408c8ea62778",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/valkey-io/valkey/commit/f8d2027e8d4df790ac04974bf606408c8ea62778"
                },
                {
                    "name": "https://github.com/valkey-io/valkey/releases/tag/7.2.14",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/valkey-io/valkey/releases/tag/7.2.14"
                },
                {
                    "name": "https://github.com/valkey-io/valkey/releases/tag/8.0.10",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/valkey-io/valkey/releases/tag/8.0.10"
                },
                {
                    "name": "https://github.com/valkey-io/valkey/releases/tag/8.1.9",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/valkey-io/valkey/releases/tag/8.1.9"
                },
                {
                    "name": "https://github.com/valkey-io/valkey/releases/tag/9.0.5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/valkey-io/valkey/releases/tag/9.0.5"
                },
                {
                    "name": "https://github.com/valkey-io/valkey/releases/tag/9.1.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/valkey-io/valkey/releases/tag/9.1.1"
                }
            ],
            "affected": [
                {
                    "vendor": "valkey-io",
                    "product": "valkey",
                    "versions": [
                        {
                            "version": "< 7.2.14",
                            "status": "affected"
                        },
                        {
                            "version": ">= 8.0.0, < 8.0.10",
                            "status": "affected"
                        },
                        {
                            "version": ">= 8.1.0, < 8.1.9",
                            "status": "affected"
                        },
                        {
                            "version": ">= 9.0.0, < 9.0.5",
                            "status": "affected"
                        },
                        {
                            "version": ">= 9.1.0, < 9.1.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-08-18T14:23:52.508Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's RESTORE command accepts a malformed RDB stream payload that assigns one Pending Entry List NACK to multiple consumers during stream consumer-group deserialization, causing a use-after-free when one consumer is deleted while another still references the shared NACK and potentially allowing remote code execution. This issue is fixed in versions 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1."
                }
            ],
            "source": {
                "advisory": "GHSA-mvcj-73cw-22m4",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "title": "CISA ADP Vulnrichment",
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-18T00:00:00+00:00",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3",
                                "id": "CVE-2026-63639"
                            }
                        }
                    }
                ],
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-19T03:56:15.092Z"
                }
            }
        ]
    }
}