# OpenStack Ironic Python Agent Includes Functionality from Untrusted Control Sphere

Advisory record · `GHSA-rmxr-45gj-889w`

- **Identifiers:** `GHSA-rmxr-45gj-889w` · `CVE-2026-43003` · `PYSEC-2026-205`
- **State:** Confirmed
- **Severity:** CVSS 8.0 High
- **Critical:** No
- **Weakness (CWE):** [CWE-78](https://cwe.mitre.org/data/definitions/78.html) · [CWE-829](https://cwe.mitre.org/data/definitions/829.html)
- **Tags:** [Command injection](https://agentprime.io/advisories/tag/command-injection.md) · [CWE-829](https://agentprime.io/advisories/tag/cwe-829.md)
- **Published:** 1 May 2026
- **Updated:** 2 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 1 May 2026, 09:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `ironic-python-agent` (PyPI): affected `>=1.0.0, <11.6.0`; fixed in `11.6.0`

## Machine-written summary

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

> Ironic Python Agent (ironic-python-agent) versions 1.0.0 through 11.5.0 are affected. In some cases the agent runs grub-install inside a chroot of the deployed partition image, so an attacker who supplies a malicious image can execute code. Upgrade to version 11.6.0 or later.

Written 5 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

- 8.0 High, CVSS 3.1: `CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H`, from CNA (mitre)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0098, the 62nd percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:38 UTC: First seen by agentprime
- 31 Oct 2026, 14:38 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-rmxr-45gj-889w)

## Sources

- [GitHub Advisory Database: GHSA-rmxr-45gj-889w](https://github.com/advisories/GHSA-rmxr-45gj-889w)
- [OSV: GHSA-rmxr-45gj-889w](https://osv.dev/vulnerability/GHSA-rmxr-45gj-889w)
- <https://nvd.nist.gov/vuln/detail/CVE-2026-43003>
- <https://access.redhat.com/errata/RHSA-2026:51038>
- <https://access.redhat.com/errata/RHSA-2026:57801>
- <https://access.redhat.com/errata/RHSA-2026:60446>
- <https://access.redhat.com/errata/RHSA-2026:60454>
- <https://access.redhat.com/security/cve/CVE-2026-43003>
- <https://bugs.launchpad.net/ironic-python-agent/+bug/2148310>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2464306>
- <https://github.com/openstack/ironic-python-agent>
- <https://github.com/openstack/ironic-python-agent/blob/236b33abffe6688afc39c21e351cc3889b3db2dd/ironic_python_agent/efi_utils.py#L134-L139>
- <https://github.com/pypa/advisory-database/tree/main/vulns/ironic-python-agent/PYSEC-2026-205.yaml>
- <https://opendev.org/openstack/ironic-python-agent/commit/6cd463a657edcddf7b79416ac69bdef5b6f30099>

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-rmxr-45gj-889w>, 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-rmxr-45gj-889w/>. Everything for agents: <https://agentprime.io/llms.txt>.