CVE-2026-19795
Medium · 6.2CVSS
6.2
EPSS
0.1%
Published
Sep 3, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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