{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-57442",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-24T13:21:20.729Z",
        "datePublished": "2026-09-15T17:50:48.077Z",
        "dateUpdated": "2026-09-16T14:01:51.831Z"
    },
    "containers": {
        "cna": {
            "title": "MCPVault: PathFilter restricted directories (.git/.obsidian/node_modules) only denied at vault root, not nested",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-22",
                            "lang": "en",
                            "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-538",
                            "lang": "en",
                            "description": "CWE-538: Insertion of Sensitive Information into Externally-Accessible File or Directory",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 6.9,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/bitbonsai/mcpvault/security/advisories/GHSA-9c83-rr99-vfwj",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/bitbonsai/mcpvault/security/advisories/GHSA-9c83-rr99-vfwj"
                },
                {
                    "name": "https://github.com/bitbonsai/mcpvault/issues/128",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bitbonsai/mcpvault/issues/128"
                },
                {
                    "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/8795716b90d1c4090a82a58647e030763513f17e",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/bitbonsai/mcpvault/commit/8795716b90d1c4090a82a58647e030763513f17e"
                }
            ],
            "affected": [
                {
                    "vendor": "bitbonsai",
                    "product": "mcpvault",
                    "versions": [
                        {
                            "version": "< 0.11.5",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-15T17:50:48.077Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "MCPVault is a lightweight Model Context Protocol server for safe access to files in an Obsidian vault. Prior to 0.11.5, PathFilter in src/pathfilter.ts uses root-anchored deny-list patterns, so nested .git, .obsidian, and node_modules path segments do not match the restriction and pass both isAllowed() and isAllowedForListing(). An attacker who influences a path selected by an AI agent can traverse nested repository or Obsidian metadata, read remote URLs or embedded tokens, or cause nested node_modules content to pollute the listAllTags index. This issue is fixed in version 0.11.5."
                }
            ],
            "source": {
                "advisory": "GHSA-9c83-rr99-vfwj",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/bitbonsai/mcpvault/issues/128",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-16T14:01:44.030897Z",
                                "id": "CVE-2026-57442",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "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": "2026-09-16T14:01:51.831Z"
                }
            }
        ]
    }
}