{"id":"CVE-2026-11831","aliases":["EUVD-2026-104471","GHSA-wvhw-jq53-22mq"],"status":"published","title":"IBM MQ Heap-based Buffer Overflow","description":"IBM MQ could allow an authenticated attacker to cause a limited denial of service and obtain very limited information about process memory layout due to an out-of-bounds read when processing a specially crafted client request.","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":0.00201,"percentile":0.10114,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-10-19T16:41:02Z","modified":"2026-10-23T21:00:09Z","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-2026-11831"},{"url":"https://github.com/advisories/GHSA-wvhw-jq53-22mq"}],"sources":{"cve":[{"id":"CVE-2026-11831","title":"IBM MQ Heap-based Buffer Overflow","description":"IBM MQ could allow an authenticated attacker to cause a limited denial of service and obtain very limited information about process memory layout due to an out-of-bounds read when processing a specially crafted client request.","status":"published","published":"2026-10-19T16:41:02.438Z","modified":"2026-10-20T16:11:18.172Z","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":"2026-11-02T14:20:04.809935Z"}],"euvd":[{"id":"EUVD-2026-104471","description":"IBM MQ could allow an authenticated attacker to cause a limited denial of service and obtain very limited information about process memory layout due to an out-of-bounds read when processing a specially crafted client request.","status":"published","published":"2026-10-19T16:41:02Z","modified":"2026-10-20T16:11:18Z","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":"2026-11-02T16:59:43.600473Z"}],"ghsa":[{"id":"GHSA-wvhw-jq53-22mq","title":"IBM MQ could allow an authenticated attacker to cause a limited denial of service and obtain very...","description":"IBM MQ could allow an authenticated attacker to cause a limited denial of service and obtain very limited information about process memory layout due to an out-of-bounds read when processing a specially crafted client request.","status":"published","published":"2026-10-19T18:32:15Z","modified":"2026-10-19T18:32:16Z","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":"2026-11-02T15:13:57.629988Z"}],"nvd":[{"id":"CVE-2026-11831","description":"IBM MQ could allow an authenticated attacker to cause a limited denial of service and obtain very limited information about process memory layout due to an out-of-bounds read when processing a specially crafted client request.","status":"published","published":"2026-10-19T17:17:16.79Z","modified":"2026-10-23T21:00:09.23Z","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":"2026-11-02T14:13:00.83844Z"}]}}