CVE-2026-57442
MediumCVSS 6.9Exploitation Probability (EPSS)
Low risk8th percentile - higher than 8% of all known CVEs
Summary
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 read remote URLs or embedded tokens or pollute the listAllTags index.
Risk Assessment
An attacker could access sensitive repository or Obsidian metadata, read tokens, and pollute the index, potentially leading to data leakage or incorrect operation.
Recommendation
Update MCPVault to version 0.11.5 or later and verify that AI agents do not have access to untrusted paths.
Other vulnerabilities in MCPVault
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS