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apache-druid-javascript-rce-vulnerability-analysis

100 / 100 · Low risk

Fine to try.

By cxcscmu/SkillLearnBench (GitHub) · coding · 92 stars · scanned at commit 726e1f7

Understanding the CVE in Apache Druid 0.20.0 where authenticated attackers can execute arbitrary code via JavaScript payloads. The vulnerability exploits @JacksonInject with empty key "" to override JavaScriptConfig and enable JavaScript execution even when disabled. Use this skill to understand the attack vector and plan the fix.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'apache-druid-javascript-rce-vulnerability-analysis' ] || [ -L ~/.agents/skills/'apache-druid-javascript-rce-vulnerability-analysis' ]; then echo 'A skill folder named apache-druid-javascript-rce-vulnerability-analysis already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/cxcscmu/SkillLearnBench' "$d" && git -C "$d" checkout --quiet '726e1f79b96b0cb3d729d0e55a1c847e0b5353ae' -- 'skills/b3-teacher-feedback-claude-opus-4-6/fix-security-bug/run3_apache-druid-javascript-rce-vulnerability-analysis' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/b3-teacher-feedback-claude-opus-4-6/fix-security-bug/run3_apache-druid-javascript-rce-vulnerability-analysis' ~/.agents/skills/'apache-druid-javascript-rce-vulnerability-analysis' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'apache-druid-javascript-rce-vulnerability-analysis' ~/.claude/skills/'apache-druid-javascript-rce-vulnerability-analysis' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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