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MCPVault Vulnerabilities Allow Unauthorized Directory Access

By PulseAugur Editorial · [1 sources] ·

Two new advisories detail vulnerabilities in MCPVault, a tool designed to restrict language model access to directories. CVE-2026-57441 exploits case-insensitive file systems, allowing paths like `.git` or `node_modules` to bypass string comparisons and access restricted directories. CVE-2026-57442 addresses an issue where deny lists anchored only at the root fail to catch nested directories. Both vulnerabilities stem from comparing path representations rather than resolved paths, highlighting the need for robust path validation against the actual filesystem. AI

IMPACT These vulnerabilities highlight the critical need for secure path handling in AI tools that manage data access, potentially impacting the safety and integrity of AI operations.

RANK_REASON The cluster details security vulnerabilities in a specific software tool, MCPVault.

Read on dev.to — MCP tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

MCPVault Vulnerabilities Allow Unauthorized Directory Access

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Signal score
1 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
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Tool
The cluster details security vulnerabilities in a specific software tool, MCPVault.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
safety, product
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AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
1 days old
Coverage has settled into its steady-state source set.

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COVERAGE [1]

  1. dev.to — MCP tag TIER_1 English(EN) · yutianle ·

    Path filters that do not filter: CVE-2026-57441 and CVE-2026-57442 in MCPVault

    <h1> Path filters that do not filter: CVE-2026-57441 and CVE-2026-57442 in MCPVault </h1> <p>MCPVault restricts which directories a language model can read. Two advisories describe ways past those restrictions, and both turn on how the code compares a path rather than on a missin…

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