T08 · Insecure Dependencies
Warning
- Location
- SKILL.md:15
- Finding
- Unpinned Package Execution and Mutable Remote Component Retrieval## Vulnerability Details **File Location**: `SKILL.md`, line 15 **Vulnerability Type**: Unpinned third-party dependency and mutable remote registry content **Risk Level**: Medium ### Vulnerable Code ```bash npx shadcn@latest add https://ui.inference.sh/r/tools.json ``` ### Technical Analysis The Quick Start command executes the npm package release currently associated with the mutable `latest` tag and instructs it to retrieve component definitions from a remote URL. Neither the npm package version nor the remote content is pinned to an immutable revision or protected by a documented integrity check. Consequently, the effective installation behavior can change after this Skill has been reviewed. If the npm package, publisher account, remote registry, DNS resolution, or delivery infrastructure is compromised, a user following the documentation could receive malicious installation logic or altered project files. The audited file does not itself contain a malicious payload; the risk arises from trusting mutable third-party supply-chain inputs. ### Attack Path 1. An attacker compromises the npm package release process, the package publisher account, the remote component registry, or associated delivery infrastructure. 2. The attacker publishes a malicious release under `latest` or replaces the content returned by `https://ui.inference.sh/r/tools.json`. 3. A user follows the documented Quick Start command. 4. `npx` downloads and executes the currently resolved package, which then retrieves the mutable remote component definition. 5. The compromised dependency or registry content executes installation behavior or introduces attacker-controlled code into the target project. 6. The introduced code may subsequently run during development, build, deployment, or application execution. ### Impact Assessment Exploitation could allow attacker-controlled code to run with the privileges of the user executing `npx`. Depending on that ...[truncated 453 chars]
- Remediation
- ## Remediation Suggestions - Replace `shadcn@latest` with an exact, reviewed package version. - Prefer an immutable, versioned registry artifact rather than a mutable URL. - Publish and verify a cryptographic checksum or signature for downloaded component definitions. - Download and inspect generated files before allowing them to execute or enter production builds. - Run installation in a restricted environment without production credentials or unnecessary filesystem access. - Use lockfiles and automated dependency scanning to detect unexpected package or transitive dependency changes. - Pin the optional related Skills referenced elsewhere in the document to reviewed, immutable versions as well.