{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-82677",
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "state": "PUBLISHED",
        "assignerShortName": "VulDB",
        "dateReserved": "2026-08-30T16:36:08.965Z",
        "datePublished": "2026-08-31T10:00:15.053Z",
        "dateUpdated": "2026-08-31T10:00:15.053Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
                "shortName": "VulDB",
                "dateUpdated": "2026-08-31T10:00:15.053Z"
            },
            "title": "valkey-io valkey Module Timer module.c moduleTimerHandler double free",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-415",
                            "lang": "en",
                            "description": "Double Free"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-119",
                            "lang": "en",
                            "description": "Memory Corruption"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "valkey-io",
                    "product": "valkey",
                    "versions": [
                        {
                            "version": "9.1.0",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:valkey-io:valkey:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "Module Timer Subsystem"
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability was determined in valkey-io valkey 9.1.0. Impacted is the function moduleTimerHandler of the file src/module.c of the component Module Timer Subsystem. This manipulation causes double free. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: b349fe2821e3998534b1454c1b64a478daf8c6b7. To fix this issue, it is recommended to deploy a patch."
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "version": "4.0",
                        "baseScore": 4.8,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
                        "baseSeverity": "MEDIUM"
                    }
                },
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "baseScore": 2.4,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
                        "baseSeverity": "LOW"
                    }
                },
                {
                    "cvssV3_0": {
                        "version": "3.0",
                        "baseScore": 2.4,
                        "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
                        "baseSeverity": "LOW"
                    }
                },
                {
                    "cvssV2_0": {
                        "version": "2.0",
                        "baseScore": 3.3,
                        "vectorString": "AV:N/AC:L/Au:M/C:N/I:N/A:P/E:POC/RL:OF/RC:C"
                    }
                }
            ],
            "timeline": [
                {
                    "time": "2026-08-30T00:00:00.000Z",
                    "lang": "en",
                    "value": "Advisory disclosed"
                },
                {
                    "time": "2026-08-30T02:00:00.000Z",
                    "lang": "en",
                    "value": "VulDB entry created"
                },
                {
                    "time": "2026-08-30T18:41:14.000Z",
                    "lang": "en",
                    "value": "VulDB entry last update"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "VULL (VulDB User)",
                    "type": "reporter"
                }
            ],
            "references": [
                {
                    "url": "https://vuldb.com/vuln/397172",
                    "name": "VDB-397172 | valkey-io valkey Module Timer module.c moduleTimerHandler double free",
                    "tags": [
                        "vdb-entry",
                        "technical-description"
                    ]
                },
                {
                    "url": "https://vuldb.com/vuln/397172/cti",
                    "name": "VDB-397172 | CTI Indicators (IOB, IOC, IOA)",
                    "tags": [
                        "signature",
                        "permissions-required"
                    ]
                },
                {
                    "url": "https://vuldb.com/cve/CVE-2026-82677",
                    "name": "CVE-2026-82677 | CVE Analysis and Report",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://vuldb.com/submit/893959",
                    "name": "Submit #893959 | Valkey Project Valkey 9.1.0 Double Free",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://github.com/valkey-io/valkey/issues/4200",
                    "tags": [
                        "issue-tracking"
                    ]
                },
                {
                    "url": "https://github.com/valkey-io/valkey/pull/4211",
                    "tags": [
                        "issue-tracking",
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/user-attachments/files/30118801/PoC.zip",
                    "tags": [
                        "exploit"
                    ]
                },
                {
                    "url": "https://github.com/valkey-io/valkey/commit/b349fe2821e3998534b1454c1b64a478daf8c6b7",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/valkey-io/valkey/",
                    "tags": [
                        "product"
                    ]
                }
            ],
            "tags": [
                "x_open-source"
            ],
            "x_generator": [
                "VulDB PVTS v202608"
            ]
        }
    }
}