{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-2016",
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "state": "PUBLISHED",
        "assignerShortName": "VulDB",
        "dateReserved": "2026-02-05T19:35:28.683Z",
        "datePublished": "2026-02-06T11:02:08.107Z",
        "dateUpdated": "2026-02-23T09:24:15.968Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
                "shortName": "VulDB",
                "dateUpdated": "2026-02-23T09:24:15.968Z"
            },
            "title": "happyfish100 libfastcommon base64.c base64_decode stack-based overflow",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-121",
                            "lang": "en",
                            "description": "Stack-based Buffer Overflow"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-119",
                            "lang": "en",
                            "description": "Memory Corruption"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "happyfish100",
                    "product": "libfastcommon",
                    "versions": [
                        {
                            "version": "1.0.0",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.1",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.2",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.3",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.4",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.5",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.6",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.7",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.8",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.9",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.10",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.11",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.12",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.13",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.14",
                            "status": "affected"
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                        {
                            "version": "1.0.15",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.16",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.17",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.18",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.19",
                            "status": "affected"
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                        {
                            "version": "1.0.20",
                            "status": "affected"
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                        {
                            "version": "1.0.21",
                            "status": "affected"
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                        {
                            "version": "1.0.22",
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                        {
                            "version": "1.0.23",
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                        {
                            "version": "1.0.24",
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                        {
                            "version": "1.0.25",
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                        {
                            "version": "1.0.26",
                            "status": "affected"
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                        {
                            "version": "1.0.27",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.28",
                            "status": "affected"
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                        {
                            "version": "1.0.29",
                            "status": "affected"
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                        {
                            "version": "1.0.30",
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                            "status": "affected"
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                            "status": "affected"
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                        {
                            "version": "1.0.33",
                            "status": "affected"
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                        {
                            "version": "1.0.34",
                            "status": "affected"
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                        {
                            "version": "1.0.35",
                            "status": "affected"
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                            "version": "1.0.36",
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                        {
                            "version": "1.0.38",
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                        {
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                        {
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                            "status": "affected"
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                            "status": "affected"
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                        {
                            "version": "1.0.43",
                            "status": "affected"
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                        {
                            "version": "1.0.44",
                            "status": "affected"
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                        {
                            "version": "1.0.45",
                            "status": "affected"
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                        {
                            "version": "1.0.46",
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                            "status": "affected"
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                            "status": "affected"
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                        {
                            "version": "1.0.51",
                            "status": "affected"
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                        {
                            "version": "1.0.52",
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                        {
                            "version": "1.0.53",
                            "status": "affected"
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                        {
                            "version": "1.0.54",
                            "status": "affected"
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                        {
                            "version": "1.0.55",
                            "status": "affected"
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                        {
                            "version": "1.0.56",
                            "status": "affected"
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                        {
                            "version": "1.0.57",
                            "status": "affected"
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                        {
                            "version": "1.0.58",
                            "status": "affected"
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                        {
                            "version": "1.0.59",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.60",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.61",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.62",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.63",
                            "status": "affected"
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                        {
                            "version": "1.0.64",
                            "status": "affected"
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                        {
                            "version": "1.0.65",
                            "status": "affected"
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                        {
                            "version": "1.0.66",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.67",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.68",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.69",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.70",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.71",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.72",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.73",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.74",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.75",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.76",
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                        {
                            "version": "1.0.77",
                            "status": "affected"
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                        {
                            "version": "1.0.78",
                            "status": "affected"
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                        {
                            "version": "1.0.79",
                            "status": "affected"
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                        {
                            "version": "1.0.80",
                            "status": "affected"
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                        {
                            "version": "1.0.81",
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                        {
                            "version": "1.0.82",
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                        },
                        {
                            "version": "1.0.83",
                            "status": "affected"
                        },
                        {
                            "version": "1.0.84",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84. Affected by this vulnerability is the function base64_decode of the file src/base64.c. The manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. The identifier of the patch is 82f66af3e252e3e137dba0c3891570f085e79adf. Applying a patch is the recommended action to fix this issue."
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "version": "4.0",
                        "baseScore": 4.8,
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
                        "baseSeverity": "MEDIUM"
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                    "cvssV3_1": {
                        "version": "3.1",
                        "baseScore": 5.3,
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
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                {
                    "time": "2026-02-05T00:00:00.000Z",
                    "lang": "en",
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                    "time": "2026-02-05T01:00:00.000Z",
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                    "time": "2026-02-18T01:03:36.000Z",
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            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "liloler (VulDB User)",
                    "type": "reporter"
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                {
                    "url": "https://vuldb.com/?id.344598",
                    "name": "VDB-344598 | happyfish100 libfastcommon base64.c base64_decode stack-based overflow",
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                    "tags": [
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                {
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                    "url": "https://github.com/happyfish100/libfastcommon/commit/82f66af3e252e3e137dba0c3891570f085e79adf",
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        "adp": [
            {
                "metrics": [
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                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-02-06T13:08:24.871953Z",
                                "id": "CVE-2026-2016",
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}