MajorCritical vulnerability

CVE-2026-116501 (CVSS 8.4)

NVD · officialPublished Nov 8, 2026Risk 37/100EPSS 0.2%

IBM Qiskit SDK 2.4.0 through 2.6.1 could allow a local attacker to execute arbitrary code due to an out-of-bounds write caused by improper input validation when accessing a corrupted unitary matrix.

Technical details

CVSS

8.4

AV:LocalAC:LowPR:NoneUI:NoneC:HighI:HighA:High

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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