chore(security): automated monthly SBOM & VEX report - #158
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Ports the supply-chain automation to openplc-runtime (public repo — no AI triage; Claude step skipped gracefully, deterministic SBOM + report + PR still run). Python variant: generate-sbom.sh resolves requirements.txt into a clean venv and builds the CycloneDX SBOM with cyclonedx-py; OSV scans the SBOM honoring the VEX baseline. 0 advisories require action (all 5 confined to test/dev tooling or functions the Flask server never calls). SOEM (EtherCAT C lib) is a submodule tracked apart — no advisory, but GPLv3-or-commercial (material, noted in report). Baseline suppresses the 23 known IDs; the live Flask stack is left visible. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AejAiL4tfXCyMhwtjY4vFT
…erge (Python) Gate now only scans/reports (contents: read) and posts one actionable sticky PR comment; per-PR SBOM archived on MERGE by security-pr-archive.yml. Validated on autonomy-edge. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AejAiL4tfXCyMhwtjY4vFT
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What this PR adds
Installs the automated software supply-chain security pipeline for openplc-runtime (hybrid C/C++ core + Python Flask web server). Three flows, all driven by the same data:
.github/workflows/security-monthly.yml. On the 1st of each month: resolvesrequirements.txtinto a clean venv and builds the SBOM with cyclonedx-py (CycloneDX 1.6 + SPDX 2.3), scans against OSV honoring theosv-scanner.tomlVEX baseline, renders a report fromsecurity/report-config.json, opens a PR with the dated snapshot undersecurity/<YYYY-MM>/. Runs against the default branch (main)..github/workflows/security-pr-gate.yml. On every PR: fails only when the PR introduces a NEW HIGH/CRITICAL advisory (pre-existing never blocks). Resolves base vs head SBOMs; skips the base resolve whenrequirements.txtis unchanged. Posts a sticky comment with package, version, advisory link, fixed version, and how to resolve..github/workflows/security-pr-archive.yml. On merge, commits the SBOM + report undersecurity/pr-<number>-<date>/.Supporting files:
scripts/(Python SBOM generator, report renderer, OSV diff/gate),osv-scanner.toml(VEX baseline),security/report-config.json,security/README.md.Security posture (assessment)
45 Python components (the single third-party C library, SOEM, is a pinned git submodule with no known advisory, tracked separately). All 5 Python advisories are not applicable (test/dev tooling, or functions the running Flask server never calls): 0 require remediation, 0 exploitable.
The runtime is MIT, but the optional EtherCAT plugin links SOEM, which is GPLv3-or-commercial (RT-Labs). Under the open-source option the plugin becomes GPLv3; a commercial product likely needs a purchased SOEM license. Affects only the EtherCAT plugin — the MIT core and other plugins are unaffected. Flagged for acquisition due diligence.
What to review
osv-scanner.toml+security/report-config.json— the VEX triage + the SOEM licensing note. Best reviewed by product security (Thiago)..github/workflows/security-*.yml— the three flows.Notes
gatereports pass/fail but does not block merges until set as a required status check.