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IBM MQ Buffer Overflow

Type: advisorySource: Official CVE List1 source record

IBM MQ could allow a remote attacker to execute arbitrary code due to a stack buffer overflow when processing TLS certificates with malformed distinguished names during channel connection establishment.

Announced Source revision 1
Original source ↗

CVE-2026-12665

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-12665

MQ Operator

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

MQ Advanced container images

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "IBM",
    "product": "MQ Operator",
    "versions": [
      {
        "status": "affected",
        "version": "3.2.0",
        "versionType": "semver",
        "lessThanOrEqual": "3.2.29"
      },
      {
        "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",
        "versionType": "semver",
        "lessThanOrEqual": "3.5.3"
      },
      {
        "status": "affected",
        "version": "3.6.0",
        "versionType": "semver",
        "lessThanOrEqual": "3.6.4"
      },
      {
        "status": "affected",
        "version": "3.7.0",
        "versionType": "semver",
        "lessThanOrEqual": "3.7.2"
      },
      {
        "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",
        "versionType": "semver",
        "lessThanOrEqual": "2.0.29"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "IBM",
    "product": "MQ Advanced container images",
    "versions": [
      {
        "status": "affected",
        "version": "9.4.0.6-r1",
        "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"
      },
      {
        "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",
        "versionType": "custom",
        "lessThanOrEqual": "9.4.0.15-r4"
      },
      {
        "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",
        "versionType": "custom",
        "lessThanOrEqual": "9.4.0.25-r3"
      },
      {
        "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",
        "versionType": "custom",
        "lessThanOrEqual": "9.4.3.1-r3"
      },
      {
        "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",
        "versionType": "custom",
        "lessThanOrEqual": "10.0.0.0-r4"
      },
      {
        "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"
  }
]
Related CVEs
CVE-2026-12665

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#42158 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement