Triage Dependabot Alerts (dependency vulnerabilities)

On-demand triage of Dependabot dependency alerts for activepieces/activepieces. Produces a review-ready report per affected package, and proposes version-bump fixes that are proven non-breaking before any PR. The user reviews and decides per package: approve the bump / dismiss / escalate.

For human-reported vulnerabilities (Security tab advisories), use the triage-security-advisories skill. The two share the .security-triage/ workspace. Dependency CVEs are already public, so there is no scope-check against SECURITY.md and fixes may use normal PRs (not the private-fork flow).

Privacy note

Write all artifacts to .security-triage/ (gitignored). Dependabot data is less sensitive than private reports, but keep the workspace consistent and never commit triage artifacts.

Step 1 — Fetch (deterministic)

mkdir -p .security-triage
gh api -H "Accept: application/vnd.github+json" "/repos/activepieces/activepieces/dependabot/alerts?state=open" --paginate > .security-triage/dependabot.json

gh api --paginate emits one concatenated array per page — always merge:

jq -s 'add' .security-triage/dependabot.json > .tmp && mv .tmp .security-triage/dependabot.json

Then validate the result is real data, not an error object. A 404/403 body is {message,documentation_url,status}, and jq 'length' on it returns 3 — which looks like "3 alerts". Guard explicitly:

jq -e 'type=="array"' .security-triage/dependabot.json >/dev/null \
  || echo "Not an array — Dependabot fetch failed (likely token scope). Stopping."

If it is not an array, the fetch failed — almost always token scope. Don't pre-gate on a scope check: repo scope alone returned the full backlog in practice, so just try the fetch first. Only if it 403/404s or returns a non-array does the token likely need security_events — add it with gh auth refresh -s security_events (web-OAuth gho_ login) or mint a new classic token with repo + security_events and gh auth login --with-token (PAT, since refresh can't add scopes to a PAT) — then retry. Stop until the fetch returns an array.

Step 2 — Dedupe, then validate usage

A large backlog (100s of alerts) collapses to a small set of distinct vulnerabilities — the same CVE is reported once per manifest that declares the package, and a monorepo with a single hoisted lockfile installs one copy. Triage the distinct set, not the raw alerts. Dedupe first:

# distinct (package, advisory) — the real triage unit
jq -r 'group_by(.security_advisory.ghsa_id + "|" + .dependency.package.name)
  | map({pkg:.[0].dependency.package.name, sev:.[0].security_advisory.severity,
         ghsa:.[0].security_advisory.ghsa_id, n:length}) | .[]
  | "\(.sev)\t\(.pkg)\t\(.ghsa)\tx\(.n)"' .security-triage/dependabot.json | sort

By default focus on critical + high (ask the user if they want medium/low too — a big backlog is rarely worth triaging end-to-end). Then group by package for the rest of the workflow: one bump usually clears every alert for a package across all manifests.

Read the full vulnerable-range set per advisory, not just the first. Each advisory's security_advisory.vulnerabilities[] has one entry per affected major line (e.g. form-data patches <2.5.6 and >=4.0.0,<4.0.6; undici patches separate 6.x / 7.x / 8.x lines; a <6.27 range has no lower bound and also covers 5.x). A table built from vulnerabilities[0] silently understates exposure — pull them all:

jq -r '.[] | select(.security_advisory.ghsa_id=="<GHSA>")
  | .security_advisory.vulnerabilities[]
  | "  range=\(.vulnerable_version_range)  patched=\(.first_patched_version.identifier // "none")"' \
  .security-triage/dependabot.json | sort -u

Census the lockfile in the main thread — do not trust subagent recall. Before spawning subagents, list every installed copy of each package straight from the lockfile. This is authoritative; subagents routinely under-count duplicate transitive copies (in practice two subagents reported a single copy where the lockfile held three):

grep -oE '"<pkg>@[0-9][^"]*"' bun.lock | sort -u   # every installed version, incl. transitive dupes

Spawn one subagent per package (or per distinct advisory) — never one per raw alert. Each confirms the alert is real for THIS repo:

• Confirm the package is actually a dependency (direct or transitive) and which manifest(s) declare it. Ignore node_modules/** paths when grepping manifests.
• Confirm the specific vulnerable API / code path is actually imported and exercised — not a transitive-only or dead-code path.
• Ground "is it vulnerable" in the lockfile, not recall. Read the installed version from the lockfile and compare to the advisory's vulnerable range. A version inside the range is vulnerable even if it looks recent. For packages with multiple advisories, being ≥ one advisory's first-patched version does NOT mean safe — another advisory may patch higher (e.g. form-data 4.0.4 clears <4.0.4 but is still vulnerable to the <4.0.6 advisory). LLM guesses about installed versions are unreliable; always check the lockfile.
• Note the first patched version and whether a fixed version exists at all.
• Assess real exposure (reachable with attacker input vs dev/build-time only).

Detect the package manager from the repo (packageManager field + which lockfile exists: bun.lock → bun, package-lock.json → npm, pnpm-lock.yaml → pnpm, yarn.lock → yarn). This repo is bun. Use the matching tooling in Step 4.

Emit a verdict per package/advisory: AFFECTED (vulnerable path used) / NOT_AFFECTED (dep present but vulnerable API unused) / NO_FIX_YET (no patched version anywhere) / DEV_ONLY (build/test-time only).

Step 3 — Report

Write a review-ready markdown file per affected package under .security-triage/reports/dependabot-<package>.md (not one per alert — that does not scale). Each lists: the package's advisories + vulnerable ranges, installed version(s) from the lockfile, first patched version(s), usage verdict + the call sites, severity, the constituent alert IDs, and a recommendation.

Then write the consolidated .security-triage/DEPENDABOT-TRIAGE-SUMMARY.md (the review artifact — a distinct name from the advisories skill's TRIAGE-SUMMARY.md, which shares this workspace; do not clobber it): verdict tally (AFFECTED / NOT_AFFECTED / NO_FIX_YET / DEV_ONLY), a table grouped by severity + verdict (package, severity, installed → fix, verdict, reachability, alert count), and any shared-dependency patterns (one bump resolves several alerts, or several alerts share a manifest).

Present the headline verdicts in chat, most attacker-reachable first. Surface DEV_ONLY findings in a separate group — a critical CVSS in a dev-only test runner should not bury an attacker-reachable high in production code.

Step 4 — Fix on approval (bump must be PROVEN non-breaking)

After the user picks which packages to fix:

Single lockfile → one batched PR. In a monorepo with one shared lockfile (bun/npm/pnpm), per-package branches all conflict on the lockfile. Bump all approved packages in one isolated worktree and open one PR — never a worktree/PR per package.

1. Create one isolated git worktree for the whole batch so the main tree is untouched.
2. Bump each dependency to the first patched version that clears all of its advisories (bun: edit the pinned range + bun install). Direct deps here are usually exact-pinned, so bump them in every manifest that declares them — a find … -not -path '*/node_modules/*' -exec sed -i 's/"<pkg>": "<old>"/"<pkg>": "<new>"/' sweep is appropriate for an exact pin.
3. Dedupe the leftover copies carefully — this is where bumps go wrong. Re-run the Step 2 census after the bump. For each still-vulnerable copy:
   • Same major line, our own tree → pin it with a flat resolutions/overrides entry (e.g. "axios": "1.16.0"). bun honours only FLAT keys — scoped keys like "superagent/form-data": "x" are silently ignored, so a flat pin forces every copy.
   • Crossing a major line inside a third-party SDK (e.g. form-data 2.x in superagent, undici 5.x in a vendor client) → do NOT force it. The repo's tests don't exercise that SDK's code path, so a forced cross-major bump cannot be proven non-breaking. Leave it and document it as a residual in the package report + PR body (which copy, which advisory, why not forced). Fixing the attacker-reachable direct deps is the bar; transitive SDK-internal copies wait for the SDK to update. Confirm the final tree with the census grep.
4. Classify the semver jump. A minor/patch bump is NOT automatically safe — libraries tighten TypeScript types in minor releases and break the build (in practice samlify 2.10→2.13, a minor, broke tsc by narrowing a parameter type). Flag majors as highest-risk, but never skip the build on a "low-risk" bump.
5. Read the dependency's changelog / release notes between current and target for breaking changes.
6. Grep every usage of the dependency's API across the repo and check each call against the new version. Any required code change (e.g. adapting to a tightened type) goes in the same PR.
7. Run typecheck + build + lint + the affected packages' tests: npx turbo run build lint test --filter=<pkg> … (one --filter per affected package).
8. Triage failures — don't assume the bump caused them. If a test fails, re-run it on the base (HEAD) tree before blaming the bump: stale tests and network-dependent integration tests fail regardless of the dependency version. Only a test that is green on base and red after the bump is yours to fix.

NO_FIX_YET packages get no bump PR. Instead produce a risk-acceptance / mitigation writeup in the package report: where it's reachable, any existing sandboxing, and the options (accept residual risk with justification, patch locally via patch-package/bun patch, or swap the library). If the only available fix is an external source (e.g. SheetJS off npm → CDN tarball), flag the self-hosting rule — an install that depends on a third-party CDN at build time may break zero-setup self-hosting; call it out for a maintainer decision.

Dependency CVEs are public, so a normal PR is fine (no private-fork flow). Patch-bump scope — do not bundle unrelated upgrades.

Output recap

Everything lands in .security-triage/ (gitignored): dependabot.json, DEPENDABOT-TRIAGE-SUMMARY.md, and one report per affected package under reports/.