{"id":"CVE-2026-12727","revision":"1a6b18ebc51843aeacdd27cf098bf83a","records":[{"revision":"1a6b18ebc51843aeacdd27cf098bf83a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-12727","aliases":[],"title":"IBM MQ Buffer Overflow","description":"IBM MQ could allow an authenticated attacker to cause potential process instability due to an off-by-one buffer overflow when processing specially crafted object names.","state":0,"publishedAt":"2026-10-19T16:39:55.294+00:00","modifiedAt":"2026-10-19T17:03:24.593+00:00","affected":[{"ecosystem":"Vendor product","name":"MQ Operator","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"IBM\",\n                    \"product\": \"MQ Operator\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.2.0\",\n                            \"lessThanOrEqual\": \"3.2.29\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.3.0\",\n                            \"lessThan\": \"3.4.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.4.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.5.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.5.1\",\n                            \"lessThanOrEqual\": \"3.5.3\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.6.0\",\n                            \"lessThanOrEqual\": \"3.6.4\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.7.0\",\n                            \"lessThanOrEqual\": \"3.7.2\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.8.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.8.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.9.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.9.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"3.9.2\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"4.0.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"4.0.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"4.0.2\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"4.0.3\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"4.0.4\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"2.0.0\",\n                            \"lessThanOrEqual\": \"2.0.29\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"},{"ecosystem":"Vendor product","name":"MQ Advanced container images","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"IBM\",\n                    \"product\": \"MQ Advanced container images\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.6-r1\",\n                            \"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\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.6-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.7-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.10-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.10-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.11-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.11-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.11-r3\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.12-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.15-r1\",\n                            \"lessThanOrEqual\": \"9.4.0.15-r4\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.16-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.16-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.17-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.17-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.20-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.21-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.21-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.25-r1\",\n                            \"lessThanOrEqual\": \"9.4.0.25-r3\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.26-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.1.0-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.1.0-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.1.1-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.2.0-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.2.0-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.2.1-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.2.1-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.3.0-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.3.0-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.3.1-r1\",\n                            \"lessThanOrEqual\": \"9.4.3.1-r3\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.4.0-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.4.1-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.5.0-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.5.0-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.5.1-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"10.0.0.0-r1\",\n                            \"lessThanOrEqual\": \"10.0.0.0-r4\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"10.0.0.5-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.0-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.0-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.0-r3\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.1-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.1-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.1-r3\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.1-r4\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.3-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.4-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.4-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.5-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.5-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.5-r3\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.6-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.10-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.10-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.11-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.11-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.15-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.16-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.16-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.17-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.17-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.17-r3\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.20-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.20-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.21-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.21-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.21-r3\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.3.0.25-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.0-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.0-r2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.0-r3\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.5-r1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.4.0.5-r2\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","score":4.3,"severity":"MEDIUM"}],"references":["https://www.ibm.com/support/pages/node/7292667"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-12727","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-12727","identifiers":["CVE-2026-12727"]},"retained":false,"historicalAffected":[]}],"coverage":[]}