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CVE-2026-43003

35
FAUCET Score

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.

First published: May 1, 2026Last modified: Jun 17, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.0, <= 11.5.0CPE matchmatch criteria
cpe:2.3:a:openstack:ironic_python_agent:*:*:*:*:*:*:*:*
>= 0, < 10.2.3CPE match
cpe:2.3:a:openstack:ironic_python_agent:*:*:*:*:*:*:*:*
>= 11.0.0, < 11.2.1CPE match
cpe:2.3:a:openstack:ironic_python_agent:*:*:*:*:*:*:*:*
>= 11.3.0, < 11.5.1CPE match
cpe:2.3:a:openstack:ironic_python_agent:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.0HIGH

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.3
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
53.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 50th percentile among its peer group of 1,162 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: ironic-python-agentFixed in: 11.6.0

Vendor Advisories (1)

pipGHSA-rmxr-45gj-889whigh

OpenStack Ironic Python Agent Includes Functionality from Untrusted Control Sphere

May 1, 2026

References

access.redhat.com / security/cve/CVE-2026-43003
bugzilla.redhat.com / show_bug.cgi
security.access.redhat.com / data/csaf/v2/vex/2026/cve-2026-43003.json
openwall.com / lists/oss-security/2026/06/16/11
bugs.launchpad.net / ironic-python-agent/+bug/2148310
Issue Tracking
github.com / openstack/ironic-python-agent/blob/236b33abffe6688afc39c21e351cc3889b3db2dd/ironic_python_agent/efi_utils.py
Product