MediumVulnerability
CVE-2026-57441: MCPVault path filter bypass via case variants and trailing dots
- Source
- NVD(opens in a new tab)
- Identifier
- CVE-2026-57441
- Published
- Record updated
- Affected
- @bitbonsai/mcpvault < 0.11.4
- Fixed in
- 0.11.4
- released June 17, 2026, 90 days before disclosure
- Known exploitation
- Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
- EPSS
- 0.2%
Summary
Prior to version 0.11.4, MCPVault's PathFilter in src/pathfilter.ts matched restricted directory patterns case-sensitively and compared paths without canonicalizing filesystem-equivalent names. On case-insensitive macOS and Windows filesystems, case variants of .git, .obsidian, or node_modules, and Windows names with trailing dots or spaces, bypassed both isAllowed() and isAllowedForListing(). An attacker who influences a path selected by an AI agent can use this in read, write, move, search, or listing operations to expose or modify sensitive repository and Obsidian metadata. Vault-root .. containment is not affected.
Mitigation
Fixed in version 0.11.4.
Topics
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