Detect Litellm Command Injection
Detection and response for the LiteLLM AI gateway under two linked threats: CVE-2026-42271, an authenticated command injection in the MCP stdio preview endpoints (/mcp-rest/test/connection and /mcp-rest/test/tools/list), in CISA KEV, chaining with CVE-2026-48710 (Starlette BadHost) to unauthenticated RCE; and the poisoned LiteLLM 1.107.0 supply-chain release that drops a cook.pth/cook.py credential stealer exfiltrating to litellm.dev. Maps to MITRE ATT&CK T1190, T1059, T1195.002, T1546, T1552, and T1041. Platforms: LiteLLM proxy on Linux and Windows plus web/proxy logs. Ships five Sigma rules (process, webserver, file, proxy). Use when triaging LiteLLM proxy alerts, checking for a vulnerable (below 1.83.7) or poisoned (1.107.0) LiteLLM version, hunting MCP test endpoint requests, investigating a Python proxy that spawned /bin/sh or curl, finding cook.pth or cook.py, or spotting traffic to litellm.dev.
Security AStatic scan found no risk patternsHow grading works ›
From the source SKILL.md
LiteLLM is the open-source "AI gateway" many organisations quietly put in front of their LLM APIs: a proxy that fronts 100+ providers behind one OpenAI-compatible API, holding provider keys and sitting in the request path of everything AI in the org. That position makes it a high-value target. This skill covers two linked threats against it. First, CVE-2026-42271 (CVSS 8.8, CISA KEV), an authenticated command injection in LiteLLM's MCP stdio preview endpoints that becomes unauthenticated RCE when chained with the Starlette "BadHost" bug CVE-2026-48710. Second, the October 2026 supply-chain…
What this skill does
Detect Litellm Command Injection is a community-contributed Claude Code skill in the appsec-tools sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/detect-litellm-command-injection/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when triaging LiteLLM proxy alerts, checking for a vulnerable (below 1.83.
Who uses this skill
The Detect Litellm Command Injection 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 211,000+ 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/detect-litellm-command-injection
curl -L https://claudskills.com/skills/detect-litellm-command-injection/SKILL.md \
-o ~/.claude/skills/detect-litellm-command-injection/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/detect-litellm-command-injection/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/detect-litellm-command-injection/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\detect-litellm-command-injection\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
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 →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Frequently asked questions
How do I install the Detect Litellm Command Injection Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/detect-litellm-command-injection/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Detect Litellm Command Injection skill do?
Detection and response for the LiteLLM AI gateway under two linked threats: CVE-2026-42271, an authenticated command injection in the MCP stdio preview endpoints (/mcp-rest/test/connection and /mcp-rest/test/tools/list), in CISA KEV, chaining with CVE-2026-48710 (Starlette BadHost) to unauthenticated RCE; and the poisoned LiteLLM 1.107.0 supply-chain release that drops a cook.pth/cook.py credential stealer exfiltrating to litellm.dev. Maps to MITRE ATT&CK T1190, T1059, T1195.002, T1546, T1552, and T1041. Platforms: LiteLLM proxy on Linux and Windows plus web/proxy logs. Ships five Sigma rules (process, webserver, file, proxy). Use when triaging LiteLLM proxy alerts, checking for a vulnerable (below 1.83.7) or poisoned (1.107.0) LiteLLM version, hunting MCP test endpoint requests, investigating a Python proxy that spawned /bin/sh or curl, finding cook.pth or cook.py, or spotting traffic to litellm.dev.
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 Detect Litellm Command Injection skill?
Use Detect Litellm Command Injection when your Claude Code task falls under the Security category — specifically in the appsec tools 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 Detect Litellm Command Injection" or describe the task and let Claude pick). Browse related skills at
/category/security/.
What is a Claude Code skill and how does the Detect Litellm Command Injection 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. Detect Litellm Command Injection 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
umbrasec-labs. (2026). Detect Litellm Command Injection [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/detect-litellm-command-injection/
BibTeX
@misc{detect-litellm-command-injection-2026,
author = {umbrasec-labs},
title = {Detect Litellm Command Injection [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/detect-litellm-command-injection/}
}Embed this skill
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Security scan
Grade A · scanned 2026-10-25 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
- ✓ Prompt injection
- ✓ Data exfiltration
- ✓ Supply chain
- ✓ Reverse shell
- ✓ Credentials
- ✓ Execution
- ✓ Filesystem
- ✓ Persistence
- ✓ Obfuscation
- ✓ Network
Show this grade on your repo (click to copy):
[](https://claudskills.com/skills/detect-litellm-command-injection/#security)
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