CVE-2026-57442

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Source
https://cve.org/CVERecord?id=CVE-2026-57442
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-57442.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-57442
Aliases
Published
2026-09-15T17:50:48Z
Modified
2026-10-28T02:30:29Z
Severity
  • 6.9 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
MCPVault: PathFilter restricted directories (.git/.obsidian/node_modules) only denied at vault root, not nested
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-22",
        "CWE-538"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57442.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "0.11.5"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                }
            ]
        },
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "0.11.5"
                        },
                        {
                            "fixed": "0.11.5"
                        }
                    ],
                    "source": "DESCRIPTION"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/bitbonsai/mcpvault

Affected ranges

Type
GIT
Repo
https://github.com/bitbonsai/mcpvault
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0adb43901e1a08e85e14b42a8df2442fabc0b64a
Fixed
8795716b90d1c4090a82a58647e030763513f17e
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "fixed": "0adb43901e1a08e85e14b42a8df2442fabc0b64a"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "8795716b90d1c4090a82a58647e030763513f17e"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-57442.json"