T08 · Insecure Dependencies
- Location
SKILL.md:16- Finding
Unpinned Third-Party Package Execution with API Credentials
- Content
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Vulnerability Details
File Location:
SKILL.md, lines 16–25
Vulnerability Type: Unpinned dependency execution with sensitive environment access
Risk Level: MediumVulnerable Code
json { "mcpServers": { "lovtrip": { "command": "npx", "args": ["-y", "lovtrip@latest", "mcp"], "env": { "AMAP_API_KEY": "your-amap-api-key", "OPENROUTER_API_KEY": "your-openrouter-api-key" } } } }Technical Analysis
The configuration directs
npxto download and executelovtrip@latestautomatically. Thelatesttag is mutable, so the code executed at deployment or startup may differ from the version reviewed previously. The-yoption suppresses the normal installation confirmation, further reducing opportunities to detect an unexpected package resolution.The downloaded process also receives
AMAP_API_KEYandOPENROUTER_API_KEYthrough its environment. Since the dependency's implementation is not included in the audited project, its runtime behavior, network destinations, transitive dependencies, and handling of these credentials cannot be verified from the available files.This constitutes an insecure supply-chain pattern. It does not prove that the current
lovtrippackage is malicious, but a compromised maintainer account, registry release, dependency, or mutable package tag could turn the documented startup command into an arbitrary-code execution and credential-exposure channel.Attack Path
- An attacker compromises the package publisher, registry distribution path, or a dependency used by a future
lovtriprelease. - The malicious release becomes the version resolved by the mutable
lovtrip@latestreference. - A user starts the configured MCP server.
npx -ydownloads and executes the release without interactive approval or an integrity-pinned artifact.- The package runs with the permissions of the invoking agent or user.
- The package reads the API credentials s ...[truncated 822 chars]
- An attacker compromises the package publisher, registry distribution path, or a dependency used by a future
- Remediation
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Remediation Suggestions
- Replace
lovtrip@latestwith an exact, reviewed package version; do not use a mutable distribution tag in executable configuration. - Verify the resolved artifact with a lockfile and registry integrity hash. Preserve reviewed dependency metadata in version control where supported.
- Establish a controlled update process that reviews package changes and transitive dependencies before advancing the pinned version.
- Avoid unattended installation using
-yin security-sensitive environments, or install the approved package during a separate verified build stage. - Run the MCP server in a sandbox or isolated service account with minimum filesystem, process, and network permissions.
- Provide dedicated, least-privilege API keys rather than keys shared with other workloads. Apply provider-side quota, spending, endpoint, and origin restrictions where available.
- Prevent the child process from inheriting unrelated environment variables or credentials.
- Restrict outbound traffic to explicitly required provider endpoints and monitor for anomalous destinations.
- Rotate the API keys if this configuration has already been used with an unverified package release, and review provider logs for unexpected activity.
- Vendor or internally mirror the reviewed package when stronger supply-chain assurance is required.
- Replace