Offensive Container Escape
Container escape and breakout techniques targeting Docker, containerd, and Podman runtimes. Covers privileged container breakout via host filesystem mount and nsenter, Docker socket abuse through /var/run/docker.sock, Linux capability exploitation including CAP_SYS_ADMIN, CAP_SYS_PTRACE, and CAP_NET_ADMIN, cgroup v1 notify_on_release escape, runc CVEs such as CVE-2019-5736 and CVE-2024-21626 Leaky Vessels, kernel exploits from within containers, and Dockerfile misconfigurations like --privileged and host namespace sharing. Includes enumeration with capsh, amicontained, deepce, CDK, and nsenter. Maps to MITRE ATT&CK T1611 Escape to Host. Use this skill when the engagement scope includes container breakout, Docker escape, container privilege escalation, host access from container, or when you land inside a containerized environment and need to reach the underlying host.
Security BStatic scan: minor findingsHow grading works ›
From the source SKILL.md
You have a shell inside a container. Your objective is to break out to the underlying host operating system. Container isolation relies on Linux namespaces, cgroups, seccomp profiles, AppArmor/SELinux, and dropped capabilities. Every misconfiguration in these layers is an escape vector. This skill walks you through systematic enumeration, exploitation of common misconfigurations, abuse of exposed runtime sockets, capability-based escapes, cgroup breakouts, and known CVEs against container runtimes.
What this skill does
Offensive Container Escape is a community-contributed Claude Code skill in the cloud-security sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/offensive-container-escape/ and loads when your prompt matches the skill's trigger.
Who uses this skill
The Offensive Container Escape 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/offensive-container-escape
curl -L https://claudskills.com/skills/offensive-container-escape/SKILL.md \
-o ~/.claude/skills/offensive-container-escape/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/offensive-container-escape/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/offensive-container-escape/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\offensive-container-escape\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 Offensive Container Escape Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/offensive-container-escape/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Offensive Container Escape skill do?
Container escape and breakout techniques targeting Docker, containerd, and Podman runtimes. Covers privileged container breakout via host filesystem mount and nsenter, Docker socket abuse through /var/run/docker.sock, Linux capability exploitation including CAP_SYS_ADMIN, CAP_SYS_PTRACE, and CAP_NET_ADMIN, cgroup v1 notify_on_release escape, runc CVEs such as CVE-2019-5736 and CVE-2024-21626 Leaky Vessels, kernel exploits from within containers, and Dockerfile misconfigurations like --privileged and host namespace sharing. Includes enumeration with capsh, amicontained, deepce, CDK, and nsenter. Maps to MITRE ATT&CK T1611 Escape to Host. Use this skill when the engagement scope includes container breakout, Docker escape, container privilege escalation, host access from container, or when you land inside a containerized environment and need to reach the underlying host.
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 Offensive Container Escape skill?
Use Offensive Container Escape when your Claude Code task falls under the Security category — specifically in the cloud security 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 Offensive Container Escape" or describe the task and let Claude pick). Browse related skills at
/category/security/.
What is a Claude Code skill and how does the Offensive Container Escape 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. Offensive Container Escape 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
SnailSploit. (2026). Offensive Container Escape [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/offensive-container-escape/
BibTeX
@misc{offensive-container-escape-2026,
author = {SnailSploit},
title = {Offensive Container Escape [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/offensive-container-escape/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
[](https://claudskills.com/skills/offensive-container-escape/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/offensive-container-escape.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/offensive-container-escape.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Offensive Container Escape"></iframe>
Security scan
Grade B · scanned 2026-10-25 — free static scan against the OWASP Agentic Skills Top 10.
The scan flagged 3 of 10 categories (filesystem, reverse-shell, supply-chain), including a critical-severity pattern. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.
- ✓ 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/offensive-container-escape/#security)
More Security skills
Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:
Part of Acreator Store — Adam Lankamer's AI tools:
PerfectStudio ·
Ucaption ·
UTagger ·
AutoXPoster ·
TestYourSkills ·
AutomationFlows ·
Au Naturel ·
Telegram @acreatorstore