CVE-2026-19795
Qiskit SDK is vulnerable when deserializing QPY Files and may overflow the available stack space.
- State
- Published
- Severity
- 6.2 Medium
- Published
- Sep 3, 2026
- Updated
- Sep 4, 2026
- Reserved
- Aug 13, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.2 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | ibm |
Weaknesses
- CWE-502 Deserialization of Untrusted Data
Affected Products
| Product | Versions |
|---|---|
Qiskit SDKIBM |
|
References
- https://www.ibm.com/support/pages/node/7285932vendor-advisorypatch
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