{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-57441",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-24T13:21:20.729Z",
        "datePublished": "2026-09-15T17:49:10.118Z",
        "dateUpdated": "2026-09-15T19:43:58.303Z"
    },
    "containers": {
        "cna": {
            "title": "MCPVault: PathFilter restricted-directory deny-list bypass via case and trailing dot/space equivalence",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-41",
                            "lang": "en",
                            "description": "CWE-41: Improper Resolution of Path Equivalence",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-178",
                            "lang": "en",
                            "description": "CWE-178: Improper Handling of Case Sensitivity",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "LOW",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.4,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/bitbonsai/mcpvault/security/advisories/GHSA-j99q-93c9-h869",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/bitbonsai/mcpvault/security/advisories/GHSA-j99q-93c9-h869"
                },
                {
                    "name": "https://github.com/bitbonsai/mcpvault/commit/0adb43901e1a08e85e14b42a8df2442fabc0b64a",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bitbonsai/mcpvault/commit/0adb43901e1a08e85e14b42a8df2442fabc0b64a"
                },
                {
                    "name": "https://github.com/bitbonsai/mcpvault/commit/b9ea91a1c6d6adfec3e9e0483d9d79669e927fa8",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bitbonsai/mcpvault/commit/b9ea91a1c6d6adfec3e9e0483d9d79669e927fa8"
                }
            ],
            "affected": [
                {
                    "vendor": "bitbonsai",
                    "product": "mcpvault",
                    "versions": [
                        {
                            "version": "< 0.11.4",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-15T17:49:10.118Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "MCPVault is a lightweight Model Context Protocol server for safe access to files in an Obsidian vault. Prior to 0.11.4, PathFilter in src/pathfilter.ts compiles restricted-directory patterns case-sensitively and compares paths without canonicalizing filesystem-equivalent segment names. On case-insensitive macOS and Windows filesystems, case variants of .git, .obsidian, or node_modules pass both isAllowed() and isAllowedForListing() even though the operating system opens the restricted directory, and Windows trailing dots or spaces provide the same bypass. An attacker who influences a path selected by an AI agent can use the bypass in read, write, move, search, or listing operations to expose or modify sensitive repository and Obsidian metadata. Vault-root .. containment is not affected. This issue is fixed in version 0.11.4."
                }
            ],
            "source": {
                "advisory": "GHSA-j99q-93c9-h869",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-15T18:57:31.418875Z",
                                "id": "CVE-2026-57441",
                                "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": "2026-09-15T19:43:58.303Z"
                }
            }
        ]
    }
}