CVE-2026-43003
Medium
Elevated severity or exploit probability.
CVSS base
8.0
HIGH
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
1.0%
60.7th percentile
CISA KEV
Not listed
Weakness / dates
CWE-78
Published 2026-05-01 · modified 2026-09-09
CVSS breakdown
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
| Attack Vector | A | Adjacent |
| Attack Complexity | H | High |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | C | Changed |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2026-05-01 — Published (NVD)
- 2026-09-09 — Last modified (NVD)
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.
Affected
References
- https://bugs.launchpad.net/ironic-python-agent/+bug/2148310
- https://github.com/openstack/ironic-python-agent/blob/236b33abffe6688afc39c21e351cc3889b3db2dd/ironic_python_agent/efi_utils.py#L134-L139
- http://www.openwall.com/lists/oss-security/2026/06/16/11
- 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://bugzilla.redhat.com/show_bug.cgi?id=2464306
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43003.json