OpenStack Ironic allows file overwrite via directory traversal during deployment with a crafted ISO image

published 2026-06-04 5 mo ago modified 2026-07-23 3 mo ago also GHSA-9v62-qx4c-44x5 , PYSEC-2026-3470 , EUVD-2026-34203

cvss: 5.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits: 0; none known

OpenStack Ironic through before 35.0.2 allows file overwrite via directory traversal during deployment with a crafted ISO image.

Patch / fix

fixed in 2 distros 2

pypi ironic 26.1.7, 29.0.6, 32.0.2, 35.0.2
OpenStack Ironic 26.1.7, 29.0.6, 32.0.2, 35.0.2

debian ubuntu

ironic Debian 12 1:21.4.4-0+deb12u1
ironic Debian 13 1:29.0.5-0+deb13u2
ironic Debian 14 1:35.0.1-5

debian advisories DEBIAN-CVE-2026-48681

ironic Ubuntu 22.04 LTS 1:20.1.0-0ubuntu1.3
ironic Ubuntu 24.04 LTS 1:24.1.1-0ubuntu1.3
ironic Ubuntu 25.10 1:32.0.0-0ubuntu1.1
ironic Ubuntu 26.04 LTS 1:35.0.0-0ubuntu2.1

ubuntu advisories UBUNTU-CVE-2026-48681

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-48681 updated 2026-06-27 cvss 5.9

openstack-ironic: OpenStack Ironic: File overwrite via directory traversal vulnerability

Red Hat OpenShift Container Platform 4 openstack-ironic, openstack-ironic-api, python3-ironic-tests, openstack-ironic-common, openstack-ironic-conductor Red Hat OpenStack Platform 16.2 openstack-ironic, openstack-ironic-api, openstack-ironic-common, openstack-ironic-conductor Red Hat OpenStack Platform 17.1 openstack-ironic, openstack-ironic-api, openstack-ironic-common, openstack-ironic-conductor Red Hat OpenStack Platform 18.0 openstack-ironic
affected: no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 5 mo ago (2026-06-04)

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
OSV	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
GitHub	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem	package	affected	fixed in
pypi	ironic	>=17.0.0, <26.1.7 >=27.0.0, <29.0.6 >=30.0.0, <32.0.2 >=33.0.0, <35.0.2	26.1.7 29.0.6 32.0.2 35.0.2

Affected products

OpenStack Ironic

Classification

Weakness

CWE-23 Relative Path Traversal

References

bugs.launchpad.net /ironic/+bug/2148333
web, issue-tracking, mitigation
openwall.com /lists/oss-security/2026/06/03/12
web, mailing-list, third-party-advisory
openwall.com /lists/oss-security/2026/06/03/12
web, mailing-list, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2026-48681
advisory
github.com /openstack/ironic
package
pypi.org /project/ironic
package
github.com /advisories/GHSA-9v62-qx4c-44x5
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary