CVE-2026-116499
Arbitrary Code Execution in Qiskit SDK QPY Deserialization
CVSS Score
8.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-502 |
| Vendor | ibm |
| Product | qiskit sdk |
| Published | Nov 8, 2026 |
| Last Updated | Nov 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
IBM / Qiskit SDK
1.4.2 ≤ 2.6.2
Credits
The vulnerability was reported to IBM by Nathan Rebello.