# PraisonAI Vulnerable to Implicit Execution of Arbitrary Code via Automatic \`tools.py\` Loading

Advisory record · `GHSA-2g3w-cpc4-chr4`

- **Identifiers:** `GHSA-2g3w-cpc4-chr4` · `CVE-2026-40156` · `PYSEC-2026-2895`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **Weakness (CWE):** [CWE-94](https://cwe.mitre.org/data/definitions/94.html) · [CWE-426](https://cwe.mitre.org/data/definitions/426.html) · [CWE-829](https://cwe.mitre.org/data/definitions/829.html)
- **Tags:** [Code injection](https://agentprime.io/advisories/tag/code-injection.md) · [CWE-426](https://agentprime.io/advisories/tag/cwe-426.md) · [CWE-829](https://agentprime.io/advisories/tag/cwe-829.md)
- **Published:** 10 Apr 2026
- **Updated:** 13 Jul 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 10 Apr 2026, 19:26 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `praisonai` (PyPI): affected `<4.5.128`; fixed in `4.5.128`

## 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 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 11th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:03 UTC: First seen by agentprime
- 31 Oct 2026, 15:03 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-2g3w-cpc4-chr4)

## Sources

- [GitHub Advisory Database: GHSA-2g3w-cpc4-chr4](https://github.com/advisories/GHSA-2g3w-cpc4-chr4)
- [OSV: GHSA-2g3w-cpc4-chr4](https://osv.dev/vulnerability/GHSA-2g3w-cpc4-chr4)
- <https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2g3w-cpc4-chr4>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-40156>
- <https://github.com/MervinPraison/PraisonAI>
- <https://github.com/MervinPraison/PraisonAI/releases/tag/v4.5.128>

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-2g3w-cpc4-chr4>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

---

The web page: <https://agentprime.io/advisories/GHSA-2g3w-cpc4-chr4/>. Everything for agents: <https://agentprime.io/llms.txt>.