{"id":"CVE-2026-116499","aliases":["EUVD-2026-119685"],"status":"published","title":"Arbitrary Code Execution in Qiskit SDK QPY Deserialization","description":"IBM Qiskit SDK 1.4.2 through 2.6.2 could allow a local attacker to execute arbitrary code due to deserialization of untrusted data.","severity":{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00252,"percentile":0.1682,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2026-11-08T17:03:54Z","modified":"2026-11-08T17:04:13Z","products":[{"vendor":"ibm","product":"qiskit sdk"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7295238","tags":["vendor-advisory","patch"]}],"sources":{"cve":[{"id":"CVE-2026-116499","title":"Arbitrary Code Execution in Qiskit SDK QPY Deserialization","description":"IBM Qiskit SDK 1.4.2 through 2.6.2 could allow a local attacker to execute arbitrary code due to deserialization of untrusted data.","status":"published","published":"2026-11-08T17:03:54.763Z","modified":"2026-11-10T04:56:07.936Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-08T18:44:07.937542Z"}],"euvd":[{"id":"EUVD-2026-119685","description":"IBM Qiskit SDK 1.4.2 through 2.6.2 could allow a local attacker to execute arbitrary code due to deserialization of untrusted data.","status":"published","published":"2026-11-08T17:03:54Z","modified":"2026-11-10T04:56:07Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-08T18:13:35.788806Z"}],"nvd":[{"id":"CVE-2026-116499","description":"IBM Qiskit SDK 1.4.2 through 2.6.2 could allow a local attacker to execute arbitrary code due to deserialization of untrusted data.","status":"published","published":"2026-11-08T17:16:36.87Z","modified":"2026-11-10T05:17:50.647Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-09T07:12:50.724145Z"}]}}