CVE-2026-4870
Qiskit SDK is vulnerable to specific functions may recurse too deeply and overflow the available stack space, when encountering certain classical expressions.
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
IBM Qiskit SDK 0.43.0 through 2.5.0 could allow an attacker to trigger a segmentation fault leading to a denial of service due to uncontrolled recursion in the parser.
| Vendor | ibm |
| Product | qiskit sdk |
| Published | Jun 12, 2026 |
Stay Ahead of the Next One
Get instant alerts for ibm qiskit sdk
Be the first to know when new high vulnerabilities affecting ibm qiskit sdk are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
IBM / Qiskit SDK
0.43.0 ≤ 2.5.0
Credits
This vulnerability was reported to IBM by Ali Sherif.