No red flags found in any of the 11 categories — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →
by capitalone · Agent Tool · ★ 922
Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h
🔒 Is VulnHunter safe to install? View the security audit →
VulnHunter From pattern-matching to provability. VulnHunter is an open-source, agentic AI security tool that applies proactive, attacker-first analysis directly to source code. Unlike traditional, passive SAST scanners that flag suspicious patterns and often cause false positives, VulnHunter reasons like an adversary. It identifies which defects are actually exploitable, maps prospective attack paths, and proposes targeted, evidence-backed fixes. Modern software supply chains are deeply interconnected. A single vulnerability in a widely-used open-source component can ripple across thousands of enterprises simultaneously. Developed internally at Capital One, VulnHunter is released to the community because no single organization can solve this challenge alone. [!WARNING] Cyber-safeguard disclaimer VulnHunter performs dual-use cybersecurity work (vulnerability discovery and exploitation). If you run it against an Anthropic account that is not enrolled in Anthropic's Cyber Verification Program, real-time cyber safeguards may block requests and your usage may be flagged for cyber abuse.
| Stars | 922 |
| Forks | 131 |
| Language | Python |
| Category | Agent Tool |
| License | Apache-2.0 |
| Quality Score | 68.2297040663987/100 |
| Open Issues | 16 |
| Last Updated | 2026-08-15 |
| Created | 2026-07-07 |
| Platforms | python |
| Est. Tokens | ~16k |
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VulnHunter is Agentic AI security tool that applies proactive, attacker-first analysis directly to source code.. It is categorized as a Agent Tool with 922 GitHub stars.
VulnHunter is primarily written in Python.
You can find installation instructions and usage details in the VulnHunter GitHub repository at github.com/capitalone/VulnHunter. The project has 922 stars and 131 forks, indicating an active community.
VulnHunter is released under the Apache-2.0 license, making it free to use and modify according to the license terms.
The top alternatives to VulnHunter on Agent Skills Hub include excalidraw-diagram-skill, raptor, playwright-skill. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.
Grades come from a rule-based scan built on the SlowMist agent-security taxonomy, covering 11 red-flag categories including credential harvesting, data exfiltration, and curl | sh installers. It is a first-layer scan, not a manual audit — we say so rather than overstate it.
The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.
Sources & who's responsible: