# picoclaw is vulnerable to OS command injection via the ExecTool component

Advisory record · `GHSA-cv2p-68f4-f4pw`

- **Identifiers:** `GHSA-cv2p-68f4-f4pw` · `CVE-2026-36045` · `GO-2026-5867`
- **State:** Confirmed
- **Severity:** CVSS 7.3 High
- **Critical:** No
- **Weakness (CWE):** [CWE-78](https://cwe.mitre.org/data/definitions/78.html)
- **Tags:** [Command injection](https://agentprime.io/advisories/tag/command-injection.md)
- **Published:** 27 May 2026
- **Updated:** 7 Jul 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 27 May 2026, 15:33 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/sipeed/picoclaw` (Go): affected `<=0.1.2`; no fixed version yet

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The github.com/sipeed/picoclaw Go package, versions up to and including 0.1.2, is vulnerable to OS command injection through its ExecTool component. Its guardCommand() filter relies on a denylist of 8 regular expressions that does not block all dangerous shell commands. No fix is listed, and the source gives few details about what an attacker must already have access to.

Written 6 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 7.3 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.014, the 73rd percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:06 UTC: First seen by agentprime
- 31 Oct 2026, 15:06 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-cv2p-68f4-f4pw)

## Sources

- [GitHub Advisory Database: GHSA-cv2p-68f4-f4pw](https://github.com/advisories/GHSA-cv2p-68f4-f4pw)
- [OSV: GHSA-cv2p-68f4-f4pw](https://osv.dev/vulnerability/GHSA-cv2p-68f4-f4pw)
- <https://nvd.nist.gov/vuln/detail/CVE-2026-36045>
- <https://github.com/sipeed/picoclaw/commit/01d694b9985a66c3d7119fc9f74ce8ed4f0f21b5>
- <https://gist.github.com/NucleiAv/41899be6266a9813840301577792ed68>
- <https://github.com/sipeed/picoclaw>
- <https://github.com/sipeed/picoclaw/releases/tag/v0.1.2>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-cv2p-68f4-f4pw>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-cv2p-68f4-f4pw/>. Everything for agents: <https://agentprime.io/llms.txt>.