{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-84857",
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "state": "PUBLISHED",
        "assignerShortName": "VulDB",
        "dateReserved": "2026-09-02T13:25:34.895Z",
        "datePublished": "2026-09-02T20:00:08.589Z",
        "dateUpdated": "2026-09-02T20:00:08.589Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
                "shortName": "VulDB",
                "dateUpdated": "2026-09-02T20:00:08.589Z"
            },
            "title": "sigoden aichat API Endpoint serve.rs memory allocation",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-789",
                            "lang": "en",
                            "description": "Uncontrolled Memory Allocation"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-400",
                            "lang": "en",
                            "description": "Resource Consumption"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "sigoden",
                    "product": "aichat",
                    "versions": [
                        {
                            "version": "0.30.0",
                            "status": "affected"
                        },
                        {
                            "version": "0.30.1",
                            "status": "affected"
                        },
                        {
                            "version": "0.30.2",
                            "status": "affected"
                        },
                        {
                            "version": "0.30.3",
                            "status": "affected"
                        },
                        {
                            "version": "0.30.4",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:sigoden:aichat:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "API Endpoint"
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A flaw has been found in sigoden aichat up to 0.30.4. This affects an unknown function of the file src/serve.rs of the component API Endpoint. This manipulation causes uncontrolled memory allocation. The attack can be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way."
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "version": "4.0",
                        "baseScore": 6.9,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
                        "baseSeverity": "MEDIUM"
                    }
                },
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "baseScore": 5.3,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R",
                        "baseSeverity": "MEDIUM"
                    }
                },
                {
                    "cvssV3_0": {
                        "version": "3.0",
                        "baseScore": 5.3,
                        "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R",
                        "baseSeverity": "MEDIUM"
                    }
                },
                {
                    "cvssV2_0": {
                        "version": "2.0",
                        "baseScore": 5,
                        "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR"
                    }
                }
            ],
            "timeline": [
                {
                    "time": "2026-09-02T00:00:00.000Z",
                    "lang": "en",
                    "value": "Advisory disclosed"
                },
                {
                    "time": "2026-09-02T02:00:00.000Z",
                    "lang": "en",
                    "value": "VulDB entry created"
                },
                {
                    "time": "2026-09-02T15:30:40.000Z",
                    "lang": "en",
                    "value": "VulDB entry last update"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "outlookgp (VulDB User)",
                    "type": "reporter"
                },
                {
                    "lang": "en",
                    "value": "VulDB CNA Team",
                    "type": "coordinator"
                }
            ],
            "references": [
                {
                    "url": "https://vuldb.com/vuln/398132",
                    "name": "VDB-398132 | sigoden aichat API Endpoint serve.rs memory allocation",
                    "tags": [
                        "vdb-entry"
                    ]
                },
                {
                    "url": "https://vuldb.com/vuln/398132/cti",
                    "name": "VDB-398132 | CTI Indicators (IOB, IOC, IOA)",
                    "tags": [
                        "signature",
                        "permissions-required"
                    ]
                },
                {
                    "url": "https://vuldb.com/cve/CVE-2026-84857",
                    "name": "CVE-2026-84857 | CVE Analysis and Report",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://vuldb.com/submit/886265",
                    "name": "Submit #886265 | sigoden AIChat 0.30.0 Denial of Service",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://github.com/outlookgp/CVE/tree/main/AIChat_Serve_Request_Body_DoS_Report",
                    "tags": [
                        "exploit"
                    ]
                }
            ],
            "x_generator": [
                "VulDB PVTS v202609"
            ]
        }
    }
}