Vulnerabilities in pkg:npm/@bitbonsai/mcpvault

PACKAGE
Advisory Identifier: GHSA-9c83-rr99-vfwj
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Advisory Summary

CVE-2026-57442 is a MODERATE pathfilter restricted directories (.git/.obsidian/node_modules) only vulnerability (CWE-538: Insertion of Sensitive Information into Externally-Accessible File or Directory) affecting MCPVault libraries in the npm ecosystem. The issue involves pathfilter restricted directories (.git/.obsidian/node_modules) only denied at vault root, not nested. Remediation is available by upgrading affected packages to version 0.11.5.

2 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/@bitbonsai/mcpvault

2 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/@bitbonsai/mcpvault. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-9c83-rr99-vfwj CVE-2026-57442 MODERATE MCPVault: PathFilter restricted directories (.git/.obsidian/node_modules) only denied at vault root, not nested
GHSA-j99q-93c9-h869 CVE-2026-57441 MODERATE MCPVault: PathFilter restricted-directory deny-list bypass via case and trailing dot/space equivalence

CVE-2026-57442 at a Glance

CVE Identifier CVE-2026-57442
GHSA Identifier GHSA-9c83-rr99-vfwj
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-538: Insertion of Sensitive Information into Externally-Accessible File or Directory
Affected Product MCPVault
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-57442

To remediate this vulnerability, upgrade all affected MCPVault dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@bitbonsai/mcpvault fixed: 0.11.5 
npm install @bitbonsai/mcpvault@0.11.5
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls @bitbonsai/mcpvault

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-57442, inspect your project dependencies using npm:

npm ls @bitbonsai/mcpvault

Analyze the terminal output to locate any version of MCPVault in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.11.5), your application is affected.

Note: The npm ls @bitbonsai/mcpvault command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-538: Insertion of Sensitive Information into Externally-Accessible File or Directory, where the product places sensitive information into files or directories that are accessible to actors who are allowed to have access to the files, but not to the sensitive information. In MCPVault, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

PathFilter's deny-list glob patterns are anchored, so `.git`, `.obsidian`, and `node_modules` were only blocked at the vault root. Nested copies inside the vault (e.g. `tools/cli/node_modules/...`, `tools/somerepo/.git/config`, a nested `.obsidian/`) were fully traversable via isAllowed/isAllowedForListing. Impact: a nested `.git/config` (remote URLs / embedded tokens) and nested `.obsidian` contents could be read, under the same prompt-injection threat model as GHSA-j99q-93c9-h869 (an attacker influences the path an agent reads). It also caused nested `node_modules` to pollute the tag index (#128, the public symptom). Fixed in 0.11.5 by denying these restricted names at any path depth (matched case-insensitively as any path segment).

CVE-2026-57442 Affected MCPVault Versions

1 component(s)
Fixed Versions:
0.11.5
Product / Package Ecosystem Affected Versions Fixed Version
@bitbonsai/mcpvault
npm/@bitbonsai/mcpvault
npm
< 0.11.5
0.11.5

References

GitHub Advisory / Wiki ADVISORY
https://github.com/bitbonsai/mcpvault/security/advisories/GHSA-9c83-rr99-vfwj
MCPVault Source Repository REPOSITORY
https://github.com/bitbonsai/mcpvault

Frequently Asked Questions

What is CVE-2026-57442?
CVE-2026-57442 is a security vulnerability in MCPVault involving PathFilter restricted directories (.git/.obsidian/node_modules) only denied at vault root, not nested under CWE-538: Insertion of Sensitive Information into Externally-Accessible File or Directory.
Which MCPVault versions are affected?
Affected versions include releases prior to 0.11.5 across affected packages: @bitbonsai/mcpvault.
What version fixes CVE-2026-57442?
Upgrading to 0.11.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @bitbonsai/mcpvault affected?
Yes, @bitbonsai/mcpvault is affected in releases prior to 0.11.5. Upgrade your dependency to 0.11.5 or later.
What CWE is associated with CVE-2026-57442?
CVE-2026-57442 is classified under CWE-538: Insertion of Sensitive Information into Externally-Accessible File or Directory (The product places sensitive information into files or directories that are accessible to actors who are allowed to have access to the files, but not to the sensitive information.).
How can I check npm dependencies for CVE-2026-57442?
Run the dependency tree command: 'npm ls @bitbonsai/mcpvault'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9c83-rr99-vfwj",
  "modified" : "2026-07-20T21:31:20Z",
  "published" : "2026-06-19T21:42:24Z",
  "aliases" : [ "CVE-2026-57442" ],
  "summary" : "MCPVault: PathFilter restricted directories (.git/.obsidian/node_modules) only denied at vault root, not nested",
  "details" : "PathFilter's deny-list glob patterns are anchored, so `.git`, `.obsidian`, and `node_modules` were only blocked at the vault root. Nested copies inside the vault (e.g. `tools/cli/node_modules/...`, `tools/somerepo/.git/config`, a nested `.obsidian/`) were fully traversable via isAllowed/isAllowedForListing. Impact: a nested `.git/config` (remote URLs / embedded tokens) and nested `.obsidian` contents could be read, under the same prompt-injection threat model as GHSA-j99q-93c9-h869 (an attacker influences the path an agent reads). It also caused nested `node_modules` to pollute the tag index (#128, the public symptom). Fixed in 0.11.5 by denying these restricted names at any path depth (matched case-insensitively as any path segment).",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@bitbonsai/mcpvault"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.11.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/bitbonsai/mcpvault/security/advisories/GHSA-9c83-rr99-vfwj"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/bitbonsai/mcpvault"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22", "CWE-538" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-19T21:42:24Z",
    "nvd_published_at" : null
  }
}