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CVE-2026-12150

IBM MQ queue manager is vulnerable to denial of service

CVSS 3.1 7.0 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-12150

Published

IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote attacker with a trusted TLS client certificate to cause a denial of service and potentially affect memory contents due to improper validation of deeply nested certificate data during TLS certificate processing.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-12150

Published

MQ

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "IBM",
                    "product": "MQ",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "9.1.0.0",
                            "lessThanOrEqual": "9.1.0.37 LTS",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "9.2.0.0",
                            "lessThanOrEqual": "9.2.0.43 LTS",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "9.3.0.0",
                            "lessThanOrEqual": "9.3.0.41 LTS",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "9.3.0.0",
                            "lessThanOrEqual": "9.3.5.1 CD",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "9.4.0.0",
                            "lessThanOrEqual": "9.4.0.25 LTS",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "9.4.0.0",
                            "lessThanOrEqual": "9.4.5.1 CD",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "10.0.0.0"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:ibm:mq:9.1.0.0:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:mq:9.1.0.37:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:mq:9.2.0.43:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:mq:9.3.0.41:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:mq:9.3.5.1:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:mq:9.4.0.25:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:mq:9.4.5.1:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:mq:10.0.0.0:*:*:*:*:*:*:*"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON