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Tracing Transitive Vulnerabilities

Category: Security  ·  Sub-category: security-misc  ·  Last updated:
Build a dependency-tree map of a project (npm or Python) and trace the path from each known-vulnerable transitive package back to one or more direct dependencies. Identifies which direct-dep bump would clear the most findings at once (highest-leverage upgrade), which vulnerabilities are unreachable through any version bump and require overrides or vendor-patch, and which CVEs sit at deep transitive depth (3+ levels from a direct dep) where blast-radius triage is hardest. Use when: a multi-finding audit produces noise and you need to prioritize, when planning a major dependency refresh, after an upstream package compromise hits your tree (e.g. event-stream flatmap-stream), or when an audit shows findings that automated fix commands cannot auto-resolve. Threshold: any HIGH or CRITICAL CVE reachable only through transitive paths that no single direct-dep bump can clear. Trigger with: "trace transitive vulns", "find dep paths", "SBOM vuln trace", "which direct dep pulls this CVE".

About this skill (catalog notes)

Tracing Transitive Vulnerabilities includes a dedicated installation section; worked examples; at least one code block. The SKILL.md runs to about 1,037 words, in the catalog's typical mid-range.

Source
tonsofskills.com
License
MIT
Original author
Jeremy Longshore <[email protected]>
Indexed lastmod
Catalog position
Security · security-misc
Indexed related skills
10

How Tracing Transitive Vulnerabilities fits the catalog

Tracing Transitive Vulnerabilities sits in the Security category under the security-misc sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

What this skill does

Tracing Transitive Vulnerabilities is a community-contributed Claude Code skill in the security-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/tracing-transitive-vulnerabilities/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when: a multi-finding audit produces noise and you need to prioritize, when planning a major dependency refresh, after an upstream package compromise hits your tree (e.g.

Who uses this skill

The Tracing Transitive Vulnerabilities Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/tracing-transitive-vulnerabilities
curl -L https://claudskills.com/skills/tracing-transitive-vulnerabilities/SKILL.md \
  -o ~/.claude/skills/tracing-transitive-vulnerabilities/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/tracing-transitive-vulnerabilities/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/tracing-transitive-vulnerabilities/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\tracing-transitive-vulnerabilities\SKILL.md on Windows. See the full install guide for step-by-step instructions.

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Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

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One-click install via the desktop app

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Frequently asked questions

How do I install the Tracing Transitive Vulnerabilities Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/tracing-transitive-vulnerabilities/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Tracing Transitive Vulnerabilities skill do?
Build a dependency-tree map of a project (npm or Python) and trace the path from each known-vulnerable transitive package back to one or more direct dependencies. Identifies which direct-dep bump would clear the most findings at once (highest-leverage upgrade), which vulnerabilities are unreachable through any version bump and require overrides or vendor-patch, and which CVEs sit at deep transitive depth (3+ levels from a direct dep) where blast-radius triage is hardest. Use when: a multi-finding audit produces noise and you need to prioritize, when planning a major dependency refresh, after an upstream package compromise hits your tree (e.g. event-stream flatmap-stream), or when an audit shows findings that automated fix commands cannot auto-resolve. Threshold: any HIGH or CRITICAL CVE reachable only through transitive paths that no single direct-dep bump can clear. Trigger with: "trace transitive vulns", "find dep paths", "SBOM vuln trace", "which direct dep pulls this CVE".
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Tracing Transitive Vulnerabilities skill?
Use Tracing Transitive Vulnerabilities when your Claude Code task falls under the Security category — specifically in the security misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Tracing Transitive Vulnerabilities" or describe the task and let Claude pick). Browse related skills at /category/security/.
What is a Claude Code skill and how does the Tracing Transitive Vulnerabilities skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Tracing Transitive Vulnerabilities is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
Jeremy Longshore <[email protected]>. (2026). Tracing Transitive Vulnerabilities [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/tracing-transitive-vulnerabilities/
BibTeX
@misc{tracing-transitive-vulnerabilities-2026,
  author    = {Jeremy Longshore <[email protected]>},
  title     = {Tracing Transitive Vulnerabilities [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/tracing-transitive-vulnerabilities/}
}

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