{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-58494",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-30T20:21:25.812Z",
        "datePublished": "2026-07-08T20:22:16.039Z",
        "dateUpdated": "2026-07-09T13:28:57.055Z"
    },
    "containers": {
        "cna": {
            "title": "Wasmtime: WASI hard links bypass wasmtime-wasi's FilePerms for destination",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-281",
                            "lang": "en",
                            "description": "CWE-281: Improper Preservation of Permissions",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-863",
                            "lang": "en",
                            "description": "CWE-863: Incorrect Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "NONE",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-4ch3-9j33-3pmj",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-4ch3-9j33-3pmj"
                },
                {
                    "name": "https://github.com/bytecodealliance/wasmtime/commit/5ddfd5f1ef28f2041fa07d237ad0336e167b0e0c",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bytecodealliance/wasmtime/commit/5ddfd5f1ef28f2041fa07d237ad0336e167b0e0c"
                },
                {
                    "name": "https://github.com/bytecodealliance/wasmtime/commit/7db94cdcf0c79cb3dfde884b534b653f2dd83367",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bytecodealliance/wasmtime/commit/7db94cdcf0c79cb3dfde884b534b653f2dd83367"
                },
                {
                    "name": "https://github.com/bytecodealliance/wasmtime/commit/8a250aac0962ca1364b5f16525720e9d0b39edcd",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bytecodealliance/wasmtime/commit/8a250aac0962ca1364b5f16525720e9d0b39edcd"
                },
                {
                    "name": "https://github.com/bytecodealliance/wasmtime/commit/d3ceb56ec35f39e02496eeb4e2d9c7f4fb964d9e",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bytecodealliance/wasmtime/commit/d3ceb56ec35f39e02496eeb4e2d9c7f4fb964d9e"
                },
                {
                    "name": "https://github.com/bytecodealliance/wasmtime/releases/tag/v24.0.11",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bytecodealliance/wasmtime/releases/tag/v24.0.11"
                },
                {
                    "name": "https://github.com/bytecodealliance/wasmtime/releases/tag/v36.0.12",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bytecodealliance/wasmtime/releases/tag/v36.0.12"
                },
                {
                    "name": "https://github.com/bytecodealliance/wasmtime/releases/tag/v45.0.3",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bytecodealliance/wasmtime/releases/tag/v45.0.3"
                },
                {
                    "name": "https://github.com/bytecodealliance/wasmtime/releases/tag/v46.0.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bytecodealliance/wasmtime/releases/tag/v46.0.1"
                }
            ],
            "affected": [
                {
                    "vendor": "bytecodealliance",
                    "product": "wasmtime",
                    "versions": [
                        {
                            "version": "< 24.0.11",
                            "status": "affected"
                        },
                        {
                            "version": ">= 25.0.0, < 36.0.12",
                            "status": "affected"
                        },
                        {
                            "version": ">= 37.0.0, < 45.0.3",
                            "status": "affected"
                        },
                        {
                            "version": ">= 46.0.0, < 46.0.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-08T20:22:16.039Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Wasmtime is a runtime for WebAssembly. Prior to 24.0.11, 36.0.12, 45.0.3, and 46.0.1, wasmtime-wasi hard-link creation and renaming check directory permissions but not matching FilePerms on source and destination preopens, allowing a WASI guest with a read-only source file capability to overwrite host files exposed as FilePerms::READ through wasip1, wasip2, or wasip3 filesystem interfaces. This issue is fixed in versions 24.0.11, 36.0.12, 45.0.3, and 46.0.1."
                }
            ],
            "source": {
                "advisory": "GHSA-4ch3-9j33-3pmj",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-09T13:28:46.718754Z",
                                "id": "CVE-2026-58494",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-07-09T13:28:57.055Z"
                }
            }
        ]
    }
}