{"id":"CVE-2026-12550","aliases":["EUVD-2026-117071","GHSA-3857-rj39-946p"],"status":"published","title":"IBM MQ is affected by a denial of service vulnerability","description":"IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message selection parameters.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00333,"percentile":0.26845,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-11-04T20:25:33Z","modified":"2026-11-04T21:32:40Z","products":[{"vendor":"ibm","product":"mq"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7294502","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12550"},{"url":"https://github.com/advisories/GHSA-3857-rj39-946p"}],"sources":{"cve":[{"id":"CVE-2026-12550","title":"IBM MQ is affected by a denial of service vulnerability","description":"IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message selection parameters.","status":"published","published":"2026-11-04T20:25:33.069Z","modified":"2026-11-09T20:49:49.979Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-09T21:34:55.566109Z"}],"euvd":[{"id":"EUVD-2026-117071","description":"IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message selection parameters.","status":"published","published":"2026-11-04T20:25:33Z","modified":"2026-11-09T20:49:49Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium"}],"updated_at":"2026-11-09T22:18:21.971974Z"}],"ghsa":[{"id":"GHSA-3857-rj39-946p","title":"IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS,...","description":"IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message selection parameters.","status":"published","published":"2026-11-04T21:32:33Z","modified":"2026-11-04T21:32:40Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium"}],"cwes":["CWE-122"],"updated_at":"2026-11-04T21:42:46.194147Z"}],"nvd":[{"id":"CVE-2026-12550","description":"IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message selection parameters.","status":"published","published":"2026-11-04T21:18:11.61Z","modified":"2026-11-09T22:18:47.72Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-09T23:16:04.854042Z"}]}}