ScanCode.io vs Twira Dependency Vulnerabilities

ScanCode.io provides a web interface and API for running software composition analysis scans in scripted pipelines. It scans containers, Docker images, package archives, and manifests for license, copyright, source, and vulnerability information, and can generate or consume CycloneDX and SPDX SBOMs. The same capabilities are available through its command-line interface and REST API. Documented pipeline integrations include GitHub Actions, Jenkins, GitLab, and Azure Pipelines; other CI/CD systems that support Docker can run it too. It can fetch packages using Package URLs and retrieve artifacts from JFrog Artifactory and Sonatype Nexus. Installation is preferably through Docker, including for Windows; Linux server installation is also supported, and an offline Docker package can be transferred to an isolated server. The software is open source under Apache License 2.0 and is free. Authentication for the web interface and API is disabled by default, but can be enabled. Its default setup starts one worker, so it runs one pipeline at a time.

Twira Dependency Vulnerabilities scans software lockfiles for known vulnerabilities and filters findings based on whether packages are installed and imported by code. It checks npm, Cargo, PyPI, Go, Maven, RubyGems, Packagist, NuGet, and Swift Package Manager lockfiles against OSV data, which aggregates GHSA, RustSec, PYSEC, the Go vulnerability database, and other feeds. Findings are available as structured JSON or SARIF 2.1.0. After an initial sync, a local vulnerability-data cache with a 24-hour time-to-live supports offline and air-gapped scans. Accepted-risk suppressions persist through lockfile changes, and detections are recorded in an append-only Merkle audit chain. The same binary can run on a laptop, CI runner, or in an air-gapped environment. Twira says indexing runs locally and indexed content is not telemetered; LLM calls use the customer’s chosen provider and key. The free plan does not list SCA. Pro costs $29.99 a month and includes a free 14-day trial. Twira says the scanner covers application dependencies and known vulnerabilities, not novel malware or several other attack types.