High severity · published May 1, 2026
CVE-2026-43003
An issue was discovered in OpenStack ironic-python-agent 1.0.0 through 11.5.0
7.5
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IR
ironic-python-agent · OpenStack
before 10.2.3; 11.0.0 before 11.2.1; 11.3.0 before 11.5.1 · source: vendor
IP
Ironic Python Agent · Openstack
1.0.0 through 11.5.0 · source: NVD
RH
Red Hat OpenShift Container Platform 4 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat OpenShift Container Platform 4.19 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat OpenShift Container Platform 4.20 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat OpenShift Container Platform 4.21 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat OpenShift Container Platform 4.22 · Red Hat
All versions, or not specified · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43003
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-43003
Issue Tracking
https://bugs.launchpad.net/ironic-python-agent/+bug/2148310
Product
https://github.com/openstack/ironic-python-agent/blob/236b33abffe6688afc39c21e351cc3889b3db2dd/ironic_python_agent/efi_utils.py#L134-L139
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/06/16/11
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:51038
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:57801
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:60446
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