CVE-2026-57442
CVE-2026-57442 · MCPVault: PathFilter restricted directories (.git/.obsidian/node_modules) only denied at vault root, not nested
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 6.9 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
mcpvault
- Versions
- < 0.11.5: Affected
No fix published
@bitbonsai/mcpvault npm
- Affected ranges
- SEMVER: < 0.11.5
Update to 0.11.5
Original sources
- https://github.com/bitbonsai/mcpvault/security/advisories/GHSA-9c83-rr99-vfwj
- https://github.com/bitbonsai/mcpvault/issues/128
- https://github.com/bitbonsai/mcpvault/commit/0adb43901e1a08e85e14b42a8df2442fabc0b64a
- https://github.com/bitbonsai/mcpvault/commit/8795716b90d1c4090a82a58647e030763513f17e
- https://nvd.nist.gov/vuln/detail/CVE-2026-57442