Vulnerability record/PUBLISHED/Published Nov 8, 2026 17:03:54 UTC

CVE-2026-116499

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.

Base score8.4/ 10

SeverityHighCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityHigh

Attack vectorLocalAV

Attack complexityLowAC

Privileges requiredNonePR

User interactionNoneUI

ScopeUnchangedS

Confidentiality impactHighC

Integrity impactHighI

Availability impactHighA

CVSS vector stringCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authorityibm

Last updatedNov 9, 2026 01:21:54 UTC

PublishedNov 8, 2026 17:03:54 UTC

ReservedOct 26, 2026 12:58:16 UTC

Credits

The vulnerability was reported to IBM by Nathan Rebello.