# Langroid Allows XXE Injection via XMLToolMessage

Advisory record · `GHSA-pw95-88fg-3j6f`

- **Identifiers:** `GHSA-pw95-88fg-3j6f` · `CVE-2025-46726` · `PYSEC-2026-1532`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **Weakness (CWE):** [CWE-611](https://cwe.mitre.org/data/definitions/611.html)
- **Tags:** [XML external entities (XXE)](https://agentprime.io/advisories/tag/xxe.md)
- **Published:** 5 May 2025
- **Updated:** 7 Jul 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 5 May 2025, 20:40 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `langroid` (PyPI): affected `<0.53.4`; fixed in `0.53.4`

## 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0066, the 51st percentile, on 8 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 5 May 2025. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-pw95-88fg-3j6f](https://github.com/advisories/GHSA-pw95-88fg-3j6f)
- [OSV: GHSA-pw95-88fg-3j6f](https://osv.dev/vulnerability/GHSA-pw95-88fg-3j6f)
- <https://github.com/langroid/langroid/security/advisories/GHSA-pw95-88fg-3j6f>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-46726>
- <https://github.com/langroid/langroid/commit/36e7e7db4dd1636de225c2c66c84052b1e9ac3c3>
- <https://github.com/langroid/langroid>
- <https://github.com/langroid/langroid/blob/df6227e6c079ec22bb2768498423148d6685acff/langroid/agent/xml_tool_message.py#L51-L52>

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-pw95-88fg-3j6f>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

---

The web page: <https://agentprime.io/advisories/GHSA-pw95-88fg-3j6f/>. Everything for agents: <https://agentprime.io/llms.txt>.