K8s Security Policies
Cybereason-Public/owLSM
Comprehensive guide for implementing NetworkPolicy, PodSecurityPolicy, RBAC, and Pod Security Standards in Kubernetes.
Istio Service Mesh 安全策略绕过。当目标 K8s 集群使用 Istio、请求被 AuthorizationPolicy 拒绝（403 RBAC denied）、或发现 Envoy sidecar 时使用。核心手法：UID 1337 绕过 Envoy。任何在 K8s 中遇到 Istio 策略阻拦、Service Mesh 限制、或 Envoy 相关安全控制的场景都应使用此技能
Install K8s Istio Bypass
$ npx skills add wgpsec/AboutSecurity --skill k8s-istio-bypass -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install wgpsec/AboutSecurity k8s-istio-bypass --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/cloud/k8s-istio-bypass .claude/skills/k8s-istio-bypass && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "k8s-istio-bypass" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/cloud/k8s-istio-bypass into .claude/skills/k8s-istio-bypass/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k8s-istio-bypass", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/wgpsec/AboutSecurity/tree/master/skills/cloud/k8s-istio-bypassType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add wgpsec/AboutSecurity --skill k8s-istio-bypass -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install wgpsec/AboutSecurity k8s-istio-bypass --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/cloud/k8s-istio-bypass .agents/skills/k8s-istio-bypass && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "k8s-istio-bypass" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/cloud/k8s-istio-bypass into .agents/skills/k8s-istio-bypass/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k8s-istio-bypass", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add wgpsec/AboutSecurity --skill k8s-istio-bypass -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install wgpsec/AboutSecurity k8s-istio-bypass --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/cloud/k8s-istio-bypass .cursor/skills/k8s-istio-bypass && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "k8s-istio-bypass" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/cloud/k8s-istio-bypass into .cursor/skills/k8s-istio-bypass/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k8s-istio-bypass", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/wgpsec/AboutSecurity.git --path skills/cloud/k8s-istio-bypass--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add wgpsec/AboutSecurity --skill k8s-istio-bypass -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install wgpsec/AboutSecurity k8s-istio-bypass --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/cloud/k8s-istio-bypass .gemini/skills/k8s-istio-bypass && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "k8s-istio-bypass" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/cloud/k8s-istio-bypass into .gemini/skills/k8s-istio-bypass/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k8s-istio-bypass", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install wgpsec/AboutSecurity k8s-istio-bypassInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add wgpsec/AboutSecurity --skill k8s-istio-bypass -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/cloud/k8s-istio-bypass .github/skills/k8s-istio-bypass && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "k8s-istio-bypass" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/cloud/k8s-istio-bypass into .github/skills/k8s-istio-bypass/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k8s-istio-bypass", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add wgpsec/AboutSecurity --skill k8s-istio-bypass -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install wgpsec/AboutSecurity k8s-istio-bypass --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/cloud/k8s-istio-bypass .opencode/skills/k8s-istio-bypass && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "k8s-istio-bypass" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/cloud/k8s-istio-bypass into .opencode/skills/k8s-istio-bypass/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k8s-istio-bypass", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
k8s-istio-bypass- GitHub stars
- 1.8k
- Token cost
- ~727 tokens
- SKILL.md length
- 103 words
- Files
- 1
- Skills in repo
- 64
- Repo updated
- First seen
- Licence
- None found
At a glance
Istio Service Mesh 安全策略绕过。当目标 K8s 集群使用 Istio、请求被 AuthorizationPolicy 拒绝（403 RBAC denied）、或发现 Envoy sidecar 时使用。核心手法：UID 1337 绕过 Envoy。任何在 K8s 中遇到 Istio 策略阻拦、Service Mesh 限制、或 Envoy 相关安全控制的场景都应使用此技能
- Tasks that involve Container orchestration
- SKILL.md covers 核心手法: UID 1337 绕过, 其他 Istio 利用手法, 侦察流程 and 关键要点
- Calls curl
- Tasks that involve Microservices
What it does
K8s Istio Bypass is an agent skill from wgpsec/AboutSecurity. Istio Service Mesh 安全策略绕过。当目标 K8s 集群使用 Istio、请求被 AuthorizationPolicy 拒绝（403 RBAC denied）、或发现 Envoy sidecar 时使用。核心手法：UID 1337 绕过 Envoy。任何在 K8s 中遇到 Istio 策略阻拦、Service Mesh 限制、或 Envoy 相关安全控制的场景都应使用此技能
Its SKILL.md is about 730 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Backend & APIs, covering Container orchestration, Microservices and Authorization and RBAC. It works with Kubernetes. The repository describes itself as: Everything for pentest. | 渗透测试知识库，以 AI Agent 可执行的格式沉淀安全方法论。
When your agent uses it
- Tasks that involve Container orchestration
- Tasks that involve Microservices
- Tasks that involve Authorization and RBAC
Example prompts
- “/k8s-istio-bypass”
What it can do on your machine
Read from SKILL.md and the folder at commit 914ffb5. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
curl
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
github.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
K8s Istio Bypass loads about 727 tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 103 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 103 words (~727 tokens).
“Istio 通过 Envoy sidecar 实现流量管理和安全策略。但 Istio 的架构中有一个根本性的设计缺陷可以被利用：Envoy 以 UID 1337 运行，而 iptables 规则会排除 UID 1337 的流量以避免死循环——这意味着以该 UID 身份发出的请求完全绕过 Envoy，所有 Istio 策略不再生效。”
- name
- k8s-istio-bypass
- metadata.tags
- k8s,kubernetes,istio,envoy,service-mesh,authorizationpolicy,bypass,策略绕过,服务网格
- metadata.category
- cloud
Files
Just SKILL.md in skills/cloud/k8s-istio-bypass of wgpsec/AboutSecurity.
Open the folder on GitHubat commit 914ffb5
Compare with similar skills
K8s Istio Bypass next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| K8s Istio Bypass this skillwgpsec/AboutSecurity | 1.8k | — | ~727 | Automated safety check: Pass | None | |
| K8s Security PoliciesCybereason-Public/owLSM | 280 | 12 repos | ~2k | Automated safety check: Pass | GPL-2.0 | |
| Implementing Rbac Hardening For Kubernetesmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~2k | Automated safety check: Pass | Apache-2.0 | |
| Auditing Kubernetes Rbac Privilege Escalationmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~3k | Automated safety check: Pass | Apache-2.0 | |
| Gke Workload Identitygoogle/skills | 21k | — | ~4.4k | Automated safety check: Pass | Apache-2.0 | |
| Ak Cloud Deployyaalalabs/agent-kernel | 192 | — | ~14k | Automated safety check: Pass | Apache-2.0 |
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Questions about K8s Istio Bypass
What does K8s Istio Bypass do?
Istio Service Mesh 安全策略绕过。当目标 K8s 集群使用 Istio、请求被 AuthorizationPolicy 拒绝（403 RBAC denied）、或发现 Envoy sidecar 时使用。核心手法：UID 1337 绕过 Envoy。任何在 K8s 中遇到 Istio 策略阻拦、Service Mesh 限制、或 Envoy 相关安全控制的场景都应使用此技能. K8s Istio Bypass is an agent skill from wgpsec/AboutSecurity.
When should I use K8s Istio Bypass?
K8s Istio Bypass fits situations like: tasks that involve Container orchestration; tasks that involve Microservices; tasks that involve Authorization and RBAC.
How do I install K8s Istio Bypass in Claude Code?
Run `npx skills add wgpsec/AboutSecurity --skill k8s-istio-bypass -a claude-code`. Or copy the skill folder (skills/cloud/k8s-istio-bypass in wgpsec/AboutSecurity) into .claude/skills/k8s-istio-bypass in your project. Claude Code loads it when a task matches its description.
How do I install K8s Istio Bypass in Codex?
Run `npx skills add wgpsec/AboutSecurity --skill k8s-istio-bypass -a codex`. Or copy the skill folder (skills/cloud/k8s-istio-bypass in wgpsec/AboutSecurity) into .agents/skills/k8s-istio-bypass in your project. Codex loads it when a task matches its description.
Can I use K8s Istio Bypass in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add wgpsec/AboutSecurity --skill k8s-istio-bypass -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/k8s-istio-bypass, .gemini/skills/k8s-istio-bypass, .github/skills/k8s-istio-bypass and .opencode/skills/k8s-istio-bypass in your project.
What does K8s Istio Bypass need to run?
Going by SKILL.md and its folder, K8s Istio Bypass needs the command-line tools its instructions call (curl).
Does K8s Istio Bypass access the network?
SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.
Is K8s Istio Bypass safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does K8s Istio Bypass use?
No licence was found for K8s Istio Bypass or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does K8s Istio Bypass use?
About 727 tokens (SKILL.md is roughly 2.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to K8s Istio Bypass?
Skills that share tags, products or a category with K8s Istio Bypass: K8s Security Policies (Cybereason-Public/owLSM, 280 stars), Implementing Rbac Hardening For Kubernetes (mukul975/Anthropic-Cybersecurity-Skills, 34k stars), Auditing Kubernetes Rbac Privilege Escalation (mukul975/Anthropic-Cybersecurity-Skills, 34k stars) and Gke Workload Identity (google/skills, 21k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains K8s Istio Bypass?
wgpsec (a GitHub organization) maintains it in wgpsec/AboutSecurity, which has 1,778 GitHub stars. The repository holds 64 skills in this directory. The repository was last updated on October 10, 2026.
Source: wgpsec/AboutSecurity on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.