# OpenClaw's POSIX node system.run safe-bin allowlist could be widened by shell expansion

Advisory record · `GHSA-mhq8-78pj-5j79`

- **Identifiers:** `GHSA-mhq8-78pj-5j79` · `CVE-2026-53831`
- **State:** Confirmed
- **Severity:** CVSS 7.6 High
- **Critical:** No
- **Weakness (CWE):** [CWE-78](https://cwe.mitre.org/data/definitions/78.html) · [CWE-200](https://cwe.mitre.org/data/definitions/200.html) · [CWE-284](https://cwe.mitre.org/data/definitions/284.html) · [CWE-367](https://cwe.mitre.org/data/definitions/367.html)
- **Tags:** [Command injection](https://agentprime.io/advisories/tag/command-injection.md) · [Information disclosure](https://agentprime.io/advisories/tag/info-disclosure.md) · [Broken access control](https://agentprime.io/advisories/tag/access-control.md) · [Race condition](https://agentprime.io/advisories/tag/race-condition.md)
- **Published:** 2 Jul 2026
- **Updated:** 26 Aug 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 2 Jul 2026, 16:05 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `openclaw` (npm): affected `<2026.5.18`; fixed in `2026.5.18`

## 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

- 7.6 High, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N`, from CNA (VulnCheck)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0020, the 9th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 2 Jul 2026. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-mhq8-78pj-5j79](https://github.com/advisories/GHSA-mhq8-78pj-5j79)
- [OSV: GHSA-mhq8-78pj-5j79](https://osv.dev/vulnerability/GHSA-mhq8-78pj-5j79)
- <https://github.com/openclaw/openclaw/security/advisories/GHSA-mhq8-78pj-5j79>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-53831>
- <https://github.com/openclaw/openclaw>
- <https://www.vulncheck.com/advisories/openclaw-arbitrary-file-read-via-shell-expansion-in-system-run-safe-bin-allowlist>

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-mhq8-78pj-5j79>, 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-mhq8-78pj-5j79/>. Everything for agents: <https://agentprime.io/llms.txt>.