CVE-2026-115638

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-115638
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-23 04:18:16 UTC
Updated2026-10-29 17:18:01 UTC
DescriptionOpenStack 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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS: 0.002120000 probability, percentile 0.115500000 (date 2026-10-29)

Problem Types: CWE-409 | CWE-409 CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
3.1CNACVSS4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OpenStack Ironic affected 30.0.0 32.1.1 semver Not specified
CNA OpenStack Ironic affected 33.0.0 35.1.1 semver Not specified
CNA OpenStack Ironic affected 36.0.0 39.0.1 semver Not specified

References

ReferenceSourceLinkTags
bugs.launchpad.net/ironic/+bug/2171814 [email protected] bugs.launchpad.net
www.openwall.com/lists/oss-security/2026/10/29/1 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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