Code Execution Vulnerability in IBM Qiskit SDK
CVE-2026-116499

8.4HIGH

Key Information:

Vendor

IBM
Status
Qiskit Sdk
Vendor
CVE Published:
8 November 2026

What is CVE-2026-116499?

The IBM Qiskit SDK, specifically versions 1.4.2 through 2.6.2, is susceptible to a vulnerability that allows a local attacker to execute arbitrary code. This issue arises from the deserialization of untrusted data, potentially compromising the integrity of the system. Users are advised to review the vendor's advisory for mitigation and update to the latest version to safeguard against this threat.

Affected Version(s)

Qiskit SDK 1.4.2 <= 2.6.2

References

https://www.ibm.com/support/pages/node/7295238
vendor-advisorypatch

CVSS V3.1

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

The vulnerability was reported to IBM by Nathan Rebello.
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