{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-76647",
        "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "state": "PUBLISHED",
        "assignerShortName": "certcc",
        "dateReserved": "2026-08-19T15:24:24.418Z",
        "datePublished": "2026-08-19T19:26:46.137Z",
        "dateUpdated": "2026-08-27T15:49:51.556Z"
    },
    "containers": {
        "cna": {
            "title": "Leantime JSON-RPC API contains a missing authorization vulnerability",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Leantime JSON-RPC API through version 3.9.0 contains a missing authorization vulnerability in the JSON-RPC dispatcher in app/Domain/Api/Controllers/Jsonrpc.php. The dispatcher does not enforce authorization before invoking service-layer methods, allowing an authenticated user to call methods or act on resources outside their intended permissions. For example, the editOwn method accepts a user-supplied user ID without verifying that it belongs to the caller, allowing an attacker to modify another user's account and set a new password, resulting in account takeover. This vulnerability is distinct from CVE-2026-59712 and CVE-2026-15509 because the root cause is the lack of centralized authorization enforcement in the JSON-RPC dispatcher rather than the behavior of an individual exposed method."
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "affected": [
                {
                    "vendor": "Leantime",
                    "product": "JSON-RPC API",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThanOrEqual": "3.8.0",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-862 Missing Authorization"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-639 Authorization Bypass Through User-Controlled Key"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://vokecyber.com/research/leantime-jsonrpc-editown-account-takeover"
                },
                {
                    "url": "https://vokecyber.com/blog/leantime-jsonrpc-editown-account-takeover"
                },
                {
                    "url": "https://leantime.io/unlocking-leantimes-power-a-guide-to-the-json-rpc-api/"
                }
            ],
            "x_generator": {
                "engine": "VINCE 3.0.45",
                "env": "prod",
                "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-76647"
            },
            "providerMetadata": {
                "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
                "shortName": "certcc",
                "dateUpdated": "2026-08-27T15:35:09.876Z"
            }
        },
        "adp": [
            {
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-862",
                                "lang": "en",
                                "description": "CWE-862 Missing Authorization"
                            }
                        ]
                    },
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-200",
                                "lang": "en",
                                "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"
                            }
                        ]
                    },
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-639",
                                "lang": "en",
                                "description": "CWE-639 Authorization Bypass Through User-Controlled Key"
                            }
                        ]
                    }
                ],
                "references": [
                    {
                        "url": "https://vokecyber.com/research/leantime-jsonrpc-editown-account-takeover",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 8.8,
                            "attackVector": "NETWORK",
                            "baseSeverity": "HIGH",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-27T15:49:45.883985Z",
                                "id": "CVE-2026-76647",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-27T15:49:51.556Z"
                }
            }
        ]
    }
}