# Butterfly's parseJSON, getJSON functions eval malicious input, leading to remote code execution (RCE)

Advisory record · `GHSA-mpcw-3j5p-p99x`

- **Identifiers:** `GHSA-mpcw-3j5p-p99x`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **Weakness (CWE):** [CWE-95](https://cwe.mitre.org/data/definitions/95.html) · [CWE-185](https://cwe.mitre.org/data/definitions/185.html)
- **Tags:** [Code injection](https://agentprime.io/advisories/tag/code-injection.md) · [CWE-185](https://agentprime.io/advisories/tag/cwe-185.md)
- **Published:** 24 Oct 2024
- **Updated:** 4 Dec 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 24 Oct 2024, 18:27 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.openrefine.dependencies:butterfly` (Maven): affected `<1.2.6`; fixed in `1.2.6`

## 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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** No score.

## Timeline

- 31 Oct 2026, 15:12 UTC: First seen by agentprime
- 31 Oct 2026, 15:12 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-mpcw-3j5p-p99x)

## Sources

- [GitHub Advisory Database: GHSA-mpcw-3j5p-p99x](https://github.com/advisories/GHSA-mpcw-3j5p-p99x)
- [OSV: GHSA-mpcw-3j5p-p99x](https://osv.dev/vulnerability/GHSA-mpcw-3j5p-p99x)
- <https://github.com/OpenRefine/simile-butterfly/security/advisories/GHSA-mpcw-3j5p-p99x>
- <https://github.com/OpenRefine/simile-butterfly/commit/2ad1fa4cd8afe3c920c8e6e04fe7a7df5cf8294e>
- <https://github.com/OpenRefine/simile-butterfly>

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-mpcw-3j5p-p99x>, 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-mpcw-3j5p-p99x/>. Everything for agents: <https://agentprime.io/llms.txt>.