CVE-2026-43003
CWE-829Published: May 1, 2026· Updated: May 4, 2026
Official 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.
Technical Analysis
CVE-2026-43003 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Related CVEs (CWE-829)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-43003 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts