CVE-2026-115638

Medium 4.3

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.

Assigner
mitre
Published
2026-10-23
Updated
2026-10-23
Reserved
2026-10-23

Scores

SourceCVSSScoreSeverityVector
mitre3.14.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weaknesses

Affected

VendorProductVersions
OpenStack Ironic 30.0.0 to <= 32.1.1 (affected)
33.0.0 to <= 35.1.1 (affected)
36.0.0 to <= 39.0.1 (affected)
others: unaffected

References

Full CVE JSON record (5.2)

API · GitHub · cve.org

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          "vendor": "OpenStack",
          "versions": [
            {
              "lessThanOrEqual": "32.1.1",
              "status": "affected",
              "version": "30.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "35.1.1",
              "status": "affected",
              "version": "33.0.0",
              "versionType": "semver"
            },
            {
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              "status": "affected",
              "version": "36.0.0",
              "versionType": "semver"
            }
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                  "versionStartIncluding": "30.0.0",
                  "vulnerable": true
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                }
              ],
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              "operator": "OR"
            }
          ]
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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          "descriptions": [
            {
              "cweId": "CWE-409",
              "description": "CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-23T03:21:17.303Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://bugs.launchpad.net/ironic/+bug/2171814"
        }
      ],
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    "cveId": "CVE-2026-115638",
    "datePublished": "2026-10-23T03:21:17.303Z",
    "dateReserved": "2026-10-23T03:21:16.440Z",
    "dateUpdated": "2026-10-23T03:21:17.303Z",
    "state": "PUBLISHED"
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