HIGH

CVE-2026-66138

CVSS v3

7.2

HIGH

EPSS Score

0.8 %

exploit probability, as of 2026-10-17

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

CVE-2026-66138 Red Hat Product Security14 products fixed · 7 known affected
ironic-python-agent: OpenStack Ironic Python Agent: Arbitrary code execution via malicious configuration
openstack-ironic-python-agent as a component of Red Hat OpenShift Container Platform 4 · openstack-ironic-python-agent.src as a component of Red Hat OpenShift Container Platform 4 · python3-ironic-python-agent as a component of Red Hat OpenShift Container Platform 4
RHSA-2026:70587 Red Hat Product Security2 products fixed
Red Hat Security Advisory: OpenShift Container Platform 4.17.58 bug fix and security update
RHSA-2026:67936 Red Hat Product Security2 products fixed
Red Hat Security Advisory: OpenShift Container Platform 4.16.71 bug fix and security update
RHSA-2026:65852 Red Hat Product Security2 products fixed
Red Hat Security Advisory: OpenShift Container Platform 4.18.55 bug fix and security update
RHSA-2026:63047 Red Hat Product Security2 products fixed
Red Hat Security Advisory: OpenShift Container Platform 4.19.46 bug fix and security update
RHSA-2026:60446 Red Hat Product Security2 products fixed
Red Hat Security Advisory: OpenShift Container Platform 4.20.36 bug fix and security update

2 more advisories

Full record on NVD

Description

In OpenStack Ironic Python Agent through 11.6.0, a project-scoped user with the manager role can achieve arbitrary code execution on a running Ironic-Python-Agent via a maliciously constructed configuration, because the value of ntp_server is passed to a shell.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published: 2026-07-24
Last Modified: 2026-07-25

Frequently asked questions

What is CVE-2026-66138?

Is CVE-2026-66138 actively exploited?

Active exploitation of CVE-2026-66138 has not been confirmed. Its EPSS score was 0.8% on 2026-10-17, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-66138?

CVE-2026-66138 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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