{"id":"CVE-2026-19795","title":"Qiskit could allow a local attacker to cause a denial of service due to a stack overflow during deserialization of QPY payloads","summary":"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 deserializin…","severity":"medium","cvss":6.2,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-502"],"published":"2026-09-03","updated":"2026-09-08","sourceUpdated":"2026-09-08T14:17:08.940","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-19795","references":[{"url":"https://www.ibm.com/support/pages/node/7285932","label":"psirt@us.ibm.com"}],"tags":["nvd"],"epss":0.00112,"epssPercentile":0.01537,"ingestedAt":"2026-09-05T20:44:37.835Z","slug":"CVE-2026-19795","body":"## Overview\n\nQiskit 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":34.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}