CVE-2026-115638

openstack-ironic: openstack-ironic: Denial of Service via decompression bomb in configdrive

Published Oct 23, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
OpenStack Ironic through 39.0.1 allows a denial of service via a configdrive that results in a very large amount of uncompressed data, aka a gzip bomb.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Denial of Service via Configdrive Gzip Bomb in OpenStack Ironic ≤ 39.0.1 openstack-ironic: openstack-ironic: Denial of Service via decompression bomb in configdrive
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Denial of Service via Configdrive Gzip Bomb in OpenStack Ironic ≤ 39.0.1
Type Values Removed Values Added
Description OpenStack Ironic through 39.0.1 allows a denial of service via a configdrive that results in a very large amount of uncompressed data, aka a gzip bomb.
First Time appeared Openstack
Openstack ironic
Weaknesses CWE-409
CPEs cpe:2.3:a:openstack:ironic:*:*:*:*:*:*:*:*
Vendors & Products Openstack
Openstack ironic
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 29, 2026, 5:05 PM
Reserved
Oct 23, 2026, 3:21 AM
Status
Awaiting Analysis
Published
Oct 23, 2026, 4:18 AM
Modified
Oct 29, 2026, 5:18 PM
Severity
Moderate
Public date
Oct 23, 2026, 3:21 AM