CVE-2026-57442 — MCPVault: PathFilter restricted directories (.git/.obsidian/node_modules) only denied at vault root, not nested
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-l…
Published: 2026-09-15 · CVSS: 6.9 · CVSS 4.0
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: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7