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CVE-2026-11831

🗓️ 19 Oct 2026 16:41:02Reported by ibmType 
cve
 cve🔗 web.nvd.nist.gov👁 34 Views

Authenticated out-of-bounds read in IBM MQ allows DoS and limited memory layout info.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins		Security Bulletin: IBM MQ Appliance is affected by an out-of-bounds read vulnerability (CVE-2026-11831)
30 Oct 202610:00
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM MQ is affected by a denial of service vulnerability (CVE-2026-11831)
29 Oct 202612:39
–ibm
circl
Circl		CVE-2026-11831
19 Oct 202616:56
–circl
cnnvd
CNNVD		IBM MQ Operator buffer error vulnerability
18 Oct 202616:00
–cnnvd
cvelist
Cvelist		CVE-2026-11831 IBM MQ Heap-based Buffer Overflow
19 Oct 202616:41
–cvelist
euvd
EUVD		EUVD-2026-104471
19 Oct 202616:41
–euvd
nvd
NVD		CVE-2026-11831
19 Oct 202617:17
–nvd
ptsecurity
Positive Technologies		PT-2026-117506
19 Oct 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)		CVE-2026-11831: Heap-based Buffer Overflow
19 Oct 202600:00
–rapid7
vulnrichment
Vulnrichment		CVE-2026-11831 IBM MQ Heap-based Buffer Overflow
19 Oct 202616:41
–vulnrichment
NVD
Vulners
CNA
Node
OR
ibmmq_operatorRange2.0.0–2.0.29lts
ibmmq_operatorRange3.2.0–3.2.29sc2
ibmmq_operatorMatch3.3.0cd
ibmmq_operatorMatch3.4.0cd
ibmmq_operatorMatch3.4.1cd
ibmmq_operatorMatch3.5.0cd
ibmmq_operatorMatch3.5.1cd
ibmmq_operatorMatch3.5.2cd
ibmmq_operatorMatch3.5.3cd
ibmmq_operatorMatch3.6.0cd
ibmmq_operatorMatch3.6.1cd
ibmmq_operatorMatch3.6.2cd
ibmmq_operatorMatch3.6.3cd
ibmmq_operatorMatch3.6.4cd
ibmmq_operatorMatch3.7.0cd
ibmmq_operatorMatch3.7.1cd
ibmmq_operatorMatch3.7.2cd
ibmmq_operatorMatch3.8.0cd
ibmmq_operatorMatch3.8.1cd
ibmmq_operatorMatch3.9.0cd
ibmmq_operatorMatch3.9.1cd
ibmmq_operatorMatch3.9.2cd
ibmmq_operatorMatch4.0.0cd
ibmmq_operatorMatch4.0.1cd
ibmmq_operatorMatch4.0.2cd
ibmmq_operatorMatch4.0.3cd
ibmmq_operatorMatch4.0.4cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.1.0r1cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.1.0r2cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.1.1r1cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.2.0r1cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.2.0r2cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.2.1r1cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.2.1r2cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.3.0r1cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.3.0r2cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.3.1r1cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.3.1r2cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.3.1r3cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.4.0r1cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.4.0r2cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.4.0r3cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.4.0r4cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.4.1r1cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.5.0r1cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.5.0r2cd
ibmsupplied_mq_advanced_container_imagesMatch9.4.5.1r1cd
ibmsupplied_mq_advanced_container_imagesMatch10.0.0.0r1cd
ibmsupplied_mq_advanced_container_imagesMatch10.0.0.0r2cd
ibmsupplied_mq_advanced_container_imagesMatch10.0.0.0r3cd
ibmsupplied_mq_advanced_container_imagesMatch10.0.0.0r4cd
ibmsupplied_mq_advanced_container_imagesMatch10.0.0.5r1cd
Node
OR
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.0r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.0r2lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.0r3lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.1r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.1r2lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.1r3lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.1r4lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.3r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.4r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.4r2lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.5r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.5r2lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.5r3lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.6r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.10r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.10r2lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.11r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.11r2lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.15r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.16r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.16r2lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.17r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.17r2lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.17r3lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.20r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.20r2lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.21r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.21r2lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.21r3lts
ibmsupplied_mq_advanced_container_imagesMatch9.3.0.25r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.0r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.0r2lts
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.0r3lts
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.5r1lts
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.5r2lts
Node
OR
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.6r1sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.6r2sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.7r1sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.10r1sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.10r2sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.11r1sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.11r2sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.11r3sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.12sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.12r1sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.15r1sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.15r4sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.16r1sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.16r2sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.17r1sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.17r2sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.20r1sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.21r1sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.21r2sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.25r1sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.25r3sc2
ibmsupplied_mq_advanced_container_imagesMatch9.4.0.26r1sc2
[
  {
    "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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23 Oct 2026 21:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.4
EPSS0.00201
SSVC
CWE-122
IBM MQout-of-bounds readdenial of servicememory layout
34