Is there a patch available for EUVD-2026-79126?

Yes, a patch is available for EUVD-2026-79126. Update the affected software to the latest version immediately.

Mcpvault EUVD-2026-79126

Q: What is the CVSS score of EUVD-2026-79126?

EUVD-2026-79126 has a CVSS 4.0 base score of 6.9 (Medium). CVSS vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

| CVE-2026-57442 MEDIUM

Path Traversal (CWE-22)

2026-09-15 GitHub_M

GHSA-9c83-rr99-vfwj

Path Traversal Hashicorp Mcpvault

6.9

CVSS 4.0 · Vendor: GitHub_M

Severity by source

Vendor (GitHub_M) PRIMARY

6.9 MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (GitHub_M) · only source for this CVE.

CVSS VectorVendor: GitHub_M

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Scope

Lifecycle Timeline

Source Code Evidence Fetched

Sep 15, 2026 - 18:31 vuln.today

Analysis Generated

Sep 15, 2026 - 18:31 vuln.today

DescriptionCVE.org

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.

AnalysisAI

The MCPVault npm package (a lightweight Model Context Protocol server that gives AI agents access to an Obsidian vault) anchored its restricted-directory deny-list to the vault root in versions before 0.11.5, so nested .git, .obsidian and node_modules directories silently pass both isAllowed() and isAllowedForListing(). An attacker who influences which path an AI agent reads — typically through prompt injection in content the agent ingests — can cause nested .git/config files (remote URLs, embedded tokens) or nested Obsidian metadata to be read, and can pollute the listAllTags index with nested node_modules content. …