Advisoriesby IbisIBMCVE-2026-19795
IBM Qiskit SDK: denial of service
No fix yet
Qiskit could allow a local attacker to cause a denial of service due to a stack overflow during deserialization of QPY payloads. A malicious QPY payload can trigger a segmentation fault, causing the application to crash when deserializing untrusted input.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Qiskit SDK Product | >= 2.1.0, <= 2.5.1 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-502