{"id":"CVE-2026-12670","aliases":["EUVD-2026-104462","GHSA-mmjj-225r-72h6"],"status":"published","title":"IBM MQ Denial of Service","description":"IBM MQ could allow an authenticated attacker to cause a denial of service through a specially crafted message that triggers excessive memory operations during character set conversion.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00211,"percentile":0.11462,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-681"],"published":"2026-10-19T16:39:30Z","modified":"2026-10-23T17:18:28Z","products":[{"vendor":"ibm","product":"mq advanced container images"},{"vendor":"ibm","product":"mq operator"},{"vendor":"ibm","product":"mq_operator"},{"vendor":"ibm","product":"supplied_mq_advanced_container_images"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7292667","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12670"},{"url":"https://github.com/advisories/GHSA-mmjj-225r-72h6"}],"sources":{"cve":[{"id":"CVE-2026-12670","title":"IBM MQ Denial of Service","description":"IBM MQ could allow an authenticated attacker to cause a denial of service through a specially crafted message that triggers excessive memory operations during character set conversion.","status":"published","published":"2026-10-19T16:39:30.332Z","modified":"2026-10-19T18:10:58.089Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-681"],"updated_at":"2026-11-02T14:19:48.461833Z"}],"euvd":[{"id":"EUVD-2026-104462","description":"IBM MQ could allow an authenticated attacker to cause a denial of service through a specially crafted message that triggers excessive memory operations during character set conversion.","status":"published","published":"2026-10-19T16:39:30Z","modified":"2026-10-19T18:10:58Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:59:50.463489Z"}],"ghsa":[{"id":"GHSA-mmjj-225r-72h6","title":"IBM MQ could allow an authenticated attacker to cause a denial of service through a specially...","description":"IBM MQ could allow an authenticated attacker to cause a denial of service through a specially crafted message that triggers excessive memory operations during character set conversion.","status":"published","published":"2026-10-19T18:32:16Z","modified":"2026-10-19T18:32:16Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-681"],"updated_at":"2026-11-02T15:13:58.199856Z"}],"nvd":[{"id":"CVE-2026-12670","description":"IBM MQ could allow an authenticated attacker to cause a denial of service through a specially crafted message that triggers excessive memory operations during character set conversion.","status":"published","published":"2026-10-19T17:17:19.44Z","modified":"2026-10-23T17:18:28.087Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-681"],"updated_at":"2026-11-02T14:13:00.83844Z"}]}}