What is CVE-2026-4870?

CVE-2026-4870 is a high-severity vulnerability. CVSS score: 7.5/10. Published 2026-06-12.

How severe is CVE-2026-4870?

High severity. CVSS v3 base score is 7.5 out of 10.

CVE-2026-4870

CVE-2026-4870

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.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

References

psirt@us.ibm.com

Frequently asked questions

What is CVE-2026-4870?: CVE-2026-4870 is a high-severity vulnerability. CVSS score: 7.5/10. Published 2026-06-12.
How severe is CVE-2026-4870?: High severity. CVSS v3 base score is 7.5 out of 10.