MediumVulnerabilityLLM-specific
CVE-2026-57442: MCPVault path filter bypass in nested .git and .obsidian directories
- Source
- NVD(opens in a new tab)
- Identifier
- CVE-2026-57442
- Published
- Record updated
- Affected
- @bitbonsai/mcpvault < 0.11.5
- Fixed in
- 0.11.5
- released June 18, 2026, 89 days before disclosure
- Known exploitation
- Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
- EPSS
- 0.2%
Summary
MCPVault, a Model Context Protocol server for accessing files in an Obsidian vault, uses root-anchored deny-list patterns in PathFilter (src/pathfilter.ts) prior to 0.11.5. Nested .git, .obsidian, and node_modules path segments therefore pass isAllowed() and isAllowedForListing(). An attacker who influences a path chosen by an AI agent can read nested repository or Obsidian metadata, such as remote URLs or embedded tokens, or pollute the listAllTags index with nested node_modules content.
Mitigation
Fixed in 0.11.5.
Topics
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