{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23850",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-01-16T15:46:40.843Z",
        "datePublished": "2026-01-19T19:52:58.615Z",
        "dateUpdated": "2026-01-20T20:05:16.346Z"
    },
    "containers": {
        "cna": {
            "title": "SiYuan vulnerable to arbitrary file read",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-22",
                            "lang": "en",
                            "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-cv54-7wv7-qxcw",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-cv54-7wv7-qxcw"
                },
                {
                    "name": "https://github.com/siyuan-note/siyuan/issues/16860",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/siyuan-note/siyuan/issues/16860"
                },
                {
                    "name": "https://github.com/siyuan-note/siyuan/commit/b2274baba2e11c8cf8901b0c5c871e5b27f1f6dd",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/siyuan-note/siyuan/commit/b2274baba2e11c8cf8901b0c5c871e5b27f1f6dd"
                },
                {
                    "name": "https://github.com/siyuan-note/siyuan/commit/f8f4b517077b92c90c0d7b51ac11be1b34b273ad",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/siyuan-note/siyuan/commit/f8f4b517077b92c90c0d7b51ac11be1b34b273ad"
                },
                {
                    "name": "https://github.com/siyuan-note/siyuan/blob/master/kernel/model/file.go#L1035",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/siyuan-note/siyuan/blob/master/kernel/model/file.go#L1035"
                },
                {
                    "name": "https://github.com/siyuan-note/siyuan/blob/v3.4.2/kernel/api/filetree.go#L799-L886",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/siyuan-note/siyuan/blob/v3.4.2/kernel/api/filetree.go#L799-L886"
                }
            ],
            "affected": [
                {
                    "vendor": "siyuan-note",
                    "product": "siyuan",
                    "versions": [
                        {
                            "version": "< 3.5.4",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-01-19T19:56:47.029Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "SiYuan is a personal knowledge management system. In versions prior to 3.5.4, the markdown feature allows unrestricted server side html-rendering which allows arbitrary file read (LFD). Version 3.5.4 fixes the issue."
                }
            ],
            "source": {
                "advisory": "GHSA-cv54-7wv7-qxcw",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-01-20T20:04:00.809446Z",
                                "id": "CVE-2026-23850",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "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": "2026-01-20T20:05:16.346Z"
                }
            }
        ]
    }
}