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CVSS 8.0 · HIGH

CVE-2026-43003

An issue was discovered in OpenStack ironic-python-agent 1.0.0 through 11.5.0. Ironic Python Agent (IPA) sometimes executes grub-install from within a chroot of the deployed partition image, leading to code execution in the case of a malicious image.

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Analysis

OpenStack ironic-python-agent (IPA) versions 1.0.0 through 11.5.0 are vulnerable to code execution during the OS deployment process. If you allow users or automated pipelines to provide custom disk images for bare-metal provisioning, an attacker could exploit the grub-install routine to execute arbitrary code on the deployment agent.

Severity

Score: 8.0(HIGH)
Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
AV: ADJACENT_NETWORK
AC: HIGH
PR: LOW
UI: NONE
S: CHANGED
C: HIGH
I: HIGH
A: HIGH
Weakness (CWE): CWE-829

EPSS

Probability of exploitation (next 30 days): 0.0002 (0.0%)
Percentile: 6.8%
EPSS: 2026-05-06

Affects

openstack:ironic_python_agent

Technical description

An issue was discovered in OpenStack ironic-python-agent 1.0.0 through 11.5.0. Ironic Python Agent (IPA) sometimes executes grub-install from within a chroot of the deployed partition image, leading to code execution in the case of a malicious image.

Published: 5/1/2026, 9:16:17 AM
Last modified: 5/4/2026, 6:28:28 PM

References

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