{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-12155",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-12155",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-19T16:40:44.471Z",
    "updatedAt": "2026-10-19T18:25:50.095Z",
    "importedAt": "2026-10-24T01:57:55.771Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "IBM MQ Deserialization of Untrusted Data",
      "summary": "IBM MQ could allow an authenticated attacker to cause a denial of service by sending specially crafted multicast status messages that trigger a NULL pointer dereference.",
      "affected": [
        {
          "vendor": "IBM",
          "product": "MQ Operator",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "3.2.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.2.29"
            },
            {
              "version": "3.3.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.4.0"
            },
            {
              "version": "3.4.1",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "3.5.0",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "3.5.1",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.5.3"
            },
            {
              "version": "3.6.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.6.4"
            },
            {
              "version": "3.7.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.7.2"
            },
            {
              "version": "3.8.0",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "3.8.1",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "3.9.0",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "3.9.1",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "3.9.2",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "4.0.0",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "4.0.1",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "4.0.2",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "4.0.3",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "4.0.4",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "2.0.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "2.0.29"
            }
          ]
        },
        {
          "vendor": "IBM",
          "product": "MQ Advanced container images",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "9.4.0.6-r1",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "r1, 9.4.0.6-r2, 9.4.0.7-r1, 9.4.0.10-r1, 9.4.0.10-r2, 9.4.0.11-r1, 9.4.0.11-r2, 9.4.0.11-r3, 9.4.0.12-r1, 9.4.0.15-r1 - 9.4.0.15-r4, 9.4.0.16-r1, 9.4.0.16-r2, 9.4.0.17-r1, 9.4.0.17-r2, 9.4.0.20-r1, 9.4.0.21-r1, 9.4.0.21-r2, 9.4.0.25-r1 - 9.4.0.25-r3, 9.4.0.26-r1CD: 9.4.1.0-r1, 9.4.1.0-r2, 9.4.1.1-r1, 9.4.2.0-r1, 9.4.2.0-r2, 9.4.2.1-r1, 9.4.2.1-r2, 9.4.3.0-r1, 9.4.3.0-r2, 9.4.3.1-r1 - 9.4.3.1-r3, 9.4.4.0-r1 - 9.4.4.0-r4, 9.4.4.1-r1, 9.4.5.0-r1, 9.4.5.0-r2, 9.4.5.1-r1, 10.0.0.0-r1 - 10.0.0.0-r4, 10.0.0.5-r1LTS: 9.3.0.0-r1, 9.3.0.0-r2, 9.3.0.0-r3, 9.3.0.1-r1, 9.3.0.1-r2, 9.3.0.1-r3, 9.3.0.1-r4, 9.3.0.3-r1, 9.3.0.4-r1, 9.3.0.4-r2, 9.3.0.5-r1, 9.3.0.5-r2, 9.3.0.5-r3, 9.3.0.6-r1, 9.3.0.10-r1, 9.3.0.10-r2, 9.3.0.11-r1,9.3.0.11-r2, 9.3.0.15-r1, 9.3.0.16-r1, 9.3.0.16-r2, 9.3.0.17-r1, 9.3.0.17-r2, 9.3.0.17-r3, 9.3.0.20-r1, 9.3.0.20-r2, 9.3.0.21-r1, 9.3.0.21-r2, 9.3.0.21-r3, 9.3.0.25-r1, 9.4.0.0-r1, 9.4.0.0-r2, 9.4.0.0-r3, 9.4.0.5-r1, 9.4.0.5-r2"
            },
            {
              "version": "9.4.0.6-r2",
              "status": "affected"
            },
            {
              "version": "9.4.0.7-r1",
              "status": "affected"
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            {
              "version": "9.4.0.10-r1",
              "status": "affected"
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            {
              "version": "9.4.0.10-r2",
              "status": "affected"
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            {
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              "status": "affected"
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            {
              "version": "9.4.0.11-r2",
              "status": "affected"
            },
            {
              "version": "9.4.0.11-r3",
              "status": "affected"
            },
            {
              "version": "9.4.0.12-r1",
              "status": "affected"
            },
            {
              "version": "9.4.0.15-r1",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "9.4.0.15-r4"
            },
            {
              "version": "9.4.0.16-r1",
              "status": "affected"
            },
            {
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              "status": "affected"
            },
            {
              "version": "9.4.0.17-r1",
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            },
            {
              "version": "9.4.0.17-r2",
              "status": "affected"
            },
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            },
            {
              "version": "9.4.0.21-r1",
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            },
            {
              "version": "9.4.0.21-r2",
              "status": "affected"
            },
            {
              "version": "9.4.0.25-r1",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "9.4.0.25-r3"
            },
            {
              "version": "9.4.0.26-r1",
              "status": "affected"
            },
            {
              "version": "9.4.1.0-r1",
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            },
            {
              "version": "9.4.1.0-r2",
              "status": "affected"
            },
            {
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            },
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              "version": "9.4.2.0-r1",
              "status": "affected"
            },
            {
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              "status": "affected"
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            {
              "version": "9.4.2.1-r1",
              "status": "affected"
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              "status": "affected"
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              "version": "9.4.3.0-r1",
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            },
            {
              "version": "9.4.3.0-r2",
              "status": "affected"
            },
            {
              "version": "9.4.3.1-r1",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "9.4.3.1-r3"
            },
            {
              "version": "9.4.4.0-r1",
              "status": "affected"
            },
            {
              "version": "9.4.4.1-r1",
              "status": "affected"
            },
            {
              "version": "9.4.5.0-r1",
              "status": "affected"
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            {
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              "status": "affected"
            },
            {
              "version": "9.4.5.1-r1",
              "status": "affected"
            },
            {
              "version": "10.0.0.0-r1",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "10.0.0.0-r4"
            },
            {
              "version": "10.0.0.5-r1",
              "status": "affected"
            },
            {
              "version": "9.3.0.0-r1",
              "status": "affected"
            },
            {
              "version": "9.3.0.0-r2",
              "status": "affected"
            },
            {
              "version": "9.3.0.0-r3",
              "status": "affected"
            },
            {
              "version": "9.3.0.1-r1",
              "status": "affected"
            },
            {
              "version": "9.3.0.1-r2",
              "status": "affected"
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            {
              "version": "9.3.0.1-r3",
              "status": "affected"
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            {
              "version": "9.3.0.1-r4",
              "status": "affected"
            },
            {
              "version": "9.3.0.3-r1",
              "status": "affected"
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            {
              "version": "9.3.0.4-r1",
              "status": "affected"
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            {
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              "status": "affected"
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            {
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            {
              "version": "9.3.0.5-r2",
              "status": "affected"
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            {
              "version": "9.3.0.5-r3",
              "status": "affected"
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            {
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              "status": "affected"
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            {
              "version": "9.3.0.10-r1",
              "status": "affected"
            },
            {
              "version": "9.3.0.10-r2",
              "status": "affected"
            },
            {
              "version": "9.3.0.11-r1",
              "status": "affected"
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            {
              "version": "9.3.0.11-r2",
              "status": "affected"
            },
            {
              "version": "9.3.0.15-r1",
              "status": "affected"
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            {
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              "status": "affected"
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              "status": "affected"
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              "status": "affected"
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              "status": "affected"
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              "version": "9.3.0.17-r3",
              "status": "affected"
            },
            {
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              "status": "affected"
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            {
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              "status": "affected"
            },
            {
              "version": "9.3.0.21-r1",
              "status": "affected"
            },
            {
              "version": "9.3.0.21-r2",
              "status": "affected"
            },
            {
              "version": "9.3.0.21-r3",
              "status": "affected"
            },
            {
              "version": "9.3.0.25-r1",
              "status": "affected"
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            {
              "version": "9.4.0.0-r1",
              "status": "affected"
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            {
              "version": "9.4.0.0-r2",
              "status": "affected"
            },
            {
              "version": "9.4.0.0-r3",
              "status": "affected"
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            {
              "version": "9.4.0.5-r1",
              "status": "affected"
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              "version": "9.4.0.5-r2",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}