T08 · Insecure Dependencies
Warning
- Location
- SKILL.md:12
- Finding
- Mutable Dependency Versions in Wallet-Payment Integration Guidance## Vulnerability Details **File Location**: `SKILL.md`, lines 12-17 **Vulnerability Type**: Supply-chain exposure through mutable third-party dependency ranges **Risk Level**: Medium **Complete Code Snippet**: ```markdown Use this skill with `@chaoschain/ace-session-key-sdk` in runtime code. SDK package (pin recommended): ```bash npm install @chaoschain/ace-session-key-sdk@0.1.x ethers@6 ``` ``` ### Technical Analysis The installation command specifies mutable version ranges for both `@chaoschain/ace-session-key-sdk` and `ethers`. The `0.1.x` range can resolve to any matching patch release, while `@6` can resolve to later releases within the selected npm range semantics. Consequently, a future installation can retrieve dependency code that was not present during this audit. This is particularly sensitive because the skill directs runtime code to use the SDK for bounded, wallet-funded session keys and autonomous x402 payments. Dependency code used in that trust boundary may process session-key material, payment challenges, transaction parameters, policy values, and network requests. The reviewed file does not prove that either named package is currently malicious. The confirmed weakness is the non-reproducible dependency guidance and resulting exposure to future compromised, malicious, or unexpectedly incompatible releases. ### Attack Path 1. An attacker compromises a maintainer account, package-publishing workflow, npm distribution path, or another matching release in the dependency chain. 2. The attacker publishes malicious code under a version accepted by `0.1.x` or the `ethers@6` specification. 3. An operator follows the documented installation command after the malicious release becomes available. 4. npm resolves and installs the newly published matching version. 5. The application imports the dependency for session-key and payment processing. 6. Malicious dependency code executes with the application's p ...[truncated 987 chars]
- Remediation
- ## Remediation Suggestions 1. Replace version ranges with exact, reviewed versions, for example `@chaoschain/ace-session-key-sdk@0.1.Z` and an exact `ethers` release. 2. Commit a lockfile and require immutable or frozen-lockfile installation in development, CI, and production. 3. Verify npm package provenance and integrity metadata before deployment. 4. Audit direct and transitive dependencies, and use automated monitoring for advisories and unexpected ownership or publication changes. 5. Upgrade dependencies only through a controlled review process that reruns security tests and confirms lockfile changes. 6. Isolate payment processing and provide the SDK only the minimum required signing and network capabilities. 7. Enforce transaction amount, destination, category, daily-limit, and expiration constraints in a separately trusted layer or wallet policy rather than relying solely on dependency code. 8. Avoid exposing root wallet keys directly; use narrowly scoped, short-lived session keys with independently enforced spending limits.