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CVE-2026-12155 IBM MQ Deserialization of Untrusted Data

🗓️ 19 Oct 2026 16:40:44Reported by ibmType 
cvelist
 cvelist
🔗 www.cve.org👁 13 Views

Authenticated DoS in IBM MQ via multicast status messages triggering a NULL pointer dereference.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-12155
19 Oct 202616:58
–circl
cve
CVE
CVE-2026-12155
19 Oct 202616:40
–cve
euvd
EUVD
EUVD-2026-104469
19 Oct 202618:32
–euvd
nvd
NVD
CVE-2026-12155
19 Oct 202617:17
–nvd
vulnrichment
Vulnrichment
CVE-2026-12155 IBM MQ Deserialization of Untrusted Data
19 Oct 202616:40
–vulnrichment
[
  {
    "vendor": "IBM",
    "product": "MQ Operator",
    "versions": [
      {
        "status": "affected",
        "version": "3.2.0",
        "lessThanOrEqual": "3.2.29",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.3.0",
        "lessThan": "3.4.0",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.4.1",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.5.0",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.5.1",
        "lessThanOrEqual": "3.5.3",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.6.0",
        "lessThanOrEqual": "3.6.4",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.7.0",
        "lessThanOrEqual": "3.7.2",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.8.0",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.8.1",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.9.0",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.9.1",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.9.2",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.0.0",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.0.1",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.0.2",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.0.3",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.0.4",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "2.0.0",
        "lessThanOrEqual": "2.0.29",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "IBM",
    "product": "MQ Advanced container images",
    "versions": [
      {
        "status": "affected",
        "version": "9.4.0.6-r1",
        "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",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "9.4.0.6-r2"
      },
      {
        "status": "affected",
        "version": "9.4.0.7-r1"
      },
      {
        "status": "affected",
        "version": "9.4.0.10-r1"
      },
      {
        "status": "affected",
        "version": "9.4.0.10-r2"
      },
      {
        "status": "affected",
        "version": "9.4.0.11-r1"
      },
      {
        "status": "affected",
        "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",
        "lessThanOrEqual": "9.4.0.15-r4",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "9.4.0.16-r1"
      },
      {
        "status": "affected",
        "version": "9.4.0.16-r2"
      },
      {
        "status": "affected",
        "version": "9.4.0.17-r1"
      },
      {
        "status": "affected",
        "version": "9.4.0.17-r2"
      },
      {
        "status": "affected",
        "version": "9.4.0.20-r1"
      },
      {
        "status": "affected",
        "version": "9.4.0.21-r1"
      },
      {
        "status": "affected",
        "version": "9.4.0.21-r2"
      },
      {
        "status": "affected",
        "version": "9.4.0.25-r1",
        "lessThanOrEqual": "9.4.0.25-r3",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "9.4.0.26-r1"
      },
      {
        "status": "affected",
        "version": "9.4.1.0-r1"
      },
      {
        "status": "affected",
        "version": "9.4.1.0-r2"
      },
      {
        "status": "affected",
        "version": "9.4.1.1-r1"
      },
      {
        "status": "affected",
        "version": "9.4.2.0-r1"
      },
      {
        "status": "affected",
        "version": "9.4.2.0-r2"
      },
      {
        "status": "affected",
        "version": "9.4.2.1-r1"
      },
      {
        "status": "affected",
        "version": "9.4.2.1-r2"
      },
      {
        "status": "affected",
        "version": "9.4.3.0-r1"
      },
      {
        "status": "affected",
        "version": "9.4.3.0-r2"
      },
      {
        "status": "affected",
        "version": "9.4.3.1-r1",
        "lessThanOrEqual": "9.4.3.1-r3",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "9.4.4.0-r1"
      },
      {
        "status": "affected",
        "version": "9.4.4.1-r1"
      },
      {
        "status": "affected",
        "version": "9.4.5.0-r1"
      },
      {
        "status": "affected",
        "version": "9.4.5.0-r2"
      },
      {
        "status": "affected",
        "version": "9.4.5.1-r1"
      },
      {
        "status": "affected",
        "version": "10.0.0.0-r1",
        "lessThanOrEqual": "10.0.0.0-r4",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "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",
        "version": "9.3.0.1-r3"
      },
      {
        "status": "affected",
        "version": "9.3.0.1-r4"
      },
      {
        "status": "affected",
        "version": "9.3.0.3-r1"
      },
      {
        "status": "affected",
        "version": "9.3.0.4-r1"
      },
      {
        "status": "affected",
        "version": "9.3.0.4-r2"
      },
      {
        "status": "affected",
        "version": "9.3.0.5-r1"
      },
      {
        "status": "affected",
        "version": "9.3.0.5-r2"
      },
      {
        "status": "affected",
        "version": "9.3.0.5-r3"
      },
      {
        "status": "affected",
        "version": "9.3.0.6-r1"
      },
      {
        "status": "affected",
        "version": "9.3.0.10-r1"
      },
      {
        "status": "affected",
        "version": "9.3.0.10-r2"
      },
      {
        "status": "affected",
        "version": "9.3.0.11-r1"
      },
      {
        "status": "affected",
        "version": "9.3.0.11-r2"
      },
      {
        "status": "affected",
        "version": "9.3.0.15-r1"
      },
      {
        "status": "affected",
        "version": "9.3.0.16-r1"
      },
      {
        "status": "affected",
        "version": "9.3.0.16-r2"
      },
      {
        "status": "affected",
        "version": "9.3.0.17-r1"
      },
      {
        "status": "affected",
        "version": "9.3.0.17-r2"
      },
      {
        "status": "affected",
        "version": "9.3.0.17-r3"
      },
      {
        "status": "affected",
        "version": "9.3.0.20-r1"
      },
      {
        "status": "affected",
        "version": "9.3.0.20-r2"
      },
      {
        "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",
        "version": "9.4.0.0-r1"
      },
      {
        "status": "affected",
        "version": "9.4.0.0-r2"
      },
      {
        "status": "affected",
        "version": "9.4.0.0-r3"
      },
      {
        "status": "affected",
        "version": "9.4.0.5-r1"
      },
      {
        "status": "affected",
        "version": "9.4.0.5-r2"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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