{"affected":[{"product":"Qiskit SDK","source":"CNA: ibm","vendor":"IBM","versions":[{"lessThanOrEqual":"2.6.2","status":"affected","version":"1.4.2","versionType":"semver"}]}],"cveId":"CVE-2026-116499","cwes":["CWE-502"],"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.4,"severity":"high","source":"CNA: ibm","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},{"score":8.4,"severity":"high","source":"NVD: psirt@us.ibm.com","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794158196977,"publishedAt":1794157434763,"references":[{"source":"CNA: ibm","tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7295238"},{"source":"psirt@us.ibm.com","tags":[],"url":"https://www.ibm.com/support/pages/node/7295238"}],"remediation":[{"kind":"fix","source":"CNA: ibm","text":"Remediation/Fixes guidance:\n\n\n\nThe issue is addressed in Qiskit versions v2.6.2. This version is patched to no longer use SymPy internally during deserialization of payloads using QPY format versions < 13.\n\n\n\n\n\nProduct(s)Version(s) number and/or range Remediation/Fix/Instructions< Qiskit SDK https://github.com/qiskit/qiskit  - qiskit.qpy.load() function>v2.6.2\n\nUpgrade to the patched versions: qiskit v2.6.2."},{"kind":"fix","source":"CNA: ibm","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://www.ibm.com/support/pages/node/7295238"}],"revision":"b398b95b3748eded72beedcf63632dea88d3a9b36eae288bc0a4277afa1f2728","sources":[{"modifiedAt":1794157453456,"name":"CNA: ibm","retrievedAt":1794161310863,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116499"},{"modifiedAt":1794158196977,"name":"NVD","retrievedAt":1794161787039,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116499"}],"ssvc":null,"status":"published","title":"Arbitrary Code Execution in Qiskit SDK QPY Deserialization","updatedAt":1794161787039}