# IBM Qiskit-Sdk vulnerabilities Source: https://junglewise.ai/threats/technologies/qiskit-sdk Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 10 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/qiskit-sdk.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 5 vulnerabilities in IBM Qiskit-Sdk: 3 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-116501, was published on 8 November 2026. 3 vulnerabilities in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 3 - Last 30 days: 3 - Last 90 days: 4 - All time: 5 (0 critical, 0 exploited in the wild) ## About IBM Qiskit-Sdk An open-source software development kit for working with quantum computers at the level of circuits, pulses, and algorithms. ## Latest IBM Qiskit-Sdk vulnerabilities - [CVE-2026-116501: IBM Qiskit SDK out-of-bounds write in unitary matrix handler](https://junglewise.ai/threats/cve-2026-116501-ibm-qiskit-sdk-2-4-0-through-2-6-1-could-allow-a-local-attacker) (high, CVSS 8.4, published 8 Nov 2026) - [CVE-2026-116500: IBM Qiskit SDK unbound recursion in QPY deserialization](https://junglewise.ai/threats/cve-2026-116500-ibm-qiskit-sdk-2-4-0-through-2-6-1-could-allow-a-local-attacker) (medium, CVSS 6.2, published 8 Nov 2026) - [CVE-2026-116499: IBM Qiskit SDK unsafe deserialization in QPY format](https://junglewise.ai/threats/cve-2026-116499-ibm-qiskit-sdk-1-4-2-through-2-6-2-could-allow-a-local-attacker) (high, CVSS 8.4, published 8 Nov 2026) - [CVE-2026-19795: Qiskit SDK stack overflow in QPY deserialization](https://junglewise.ai/threats/cve-2026-19795-qiskit-sdk-stack-overflow-in-qpy-deserialization) (medium, CVSS 6.2, published 3 Sep 2026) - [CVE-2026-4870: IBM Qiskit SDK denial of service via uncontrolled recursion in parser](https://junglewise.ai/threats/cve-2026-4870-ibm-qiskit-sdk-denial-of-service-via-uncontrolled-recursion-in) (high, CVSS 7.5, published 12 Jun 2026) ## Most severe IBM Qiskit-Sdk vulnerabilities - [CVE-2026-116501: IBM Qiskit SDK out-of-bounds write in unitary matrix handler](https://junglewise.ai/threats/cve-2026-116501-ibm-qiskit-sdk-2-4-0-through-2-6-1-could-allow-a-local-attacker) (high, CVSS 8.4, published 8 Nov 2026) - [CVE-2026-116499: IBM Qiskit SDK unsafe deserialization in QPY format](https://junglewise.ai/threats/cve-2026-116499-ibm-qiskit-sdk-1-4-2-through-2-6-2-could-allow-a-local-attacker) (high, CVSS 8.4, published 8 Nov 2026) - [CVE-2026-4870: IBM Qiskit SDK denial of service via uncontrolled recursion in parser](https://junglewise.ai/threats/cve-2026-4870-ibm-qiskit-sdk-denial-of-service-via-uncontrolled-recursion-in) (high, CVSS 7.5, published 12 Jun 2026) - [CVE-2026-19795: Qiskit SDK stack overflow in QPY deserialization](https://junglewise.ai/threats/cve-2026-19795-qiskit-sdk-stack-overflow-in-qpy-deserialization) (medium, CVSS 6.2, published 3 Sep 2026) - [CVE-2026-116500: IBM Qiskit SDK unbound recursion in QPY deserialization](https://junglewise.ai/threats/cve-2026-116500-ibm-qiskit-sdk-2-4-0-through-2-6-1-could-allow-a-local-attacker) (medium, CVSS 6.2, published 8 Nov 2026) ## Vulnerabilities per week 3 vulnerabilities in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 1 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 3 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other IBM technologies - [IBM API Connect](https://junglewise.ai/threats/technologies/api-connect): 207 vulnerabilities - [IBM AIX](https://junglewise.ai/threats/technologies/aix): 181 vulnerabilities - [IBM Langflow](https://junglewise.ai/threats/technologies/langflow-oss): 154 vulnerabilities - [IBM i](https://junglewise.ai/threats/technologies/i): 120 vulnerabilities - [IBM Guardium Data Protection](https://junglewise.ai/threats/technologies/guardium-data-protection): 93 vulnerabilities - [IBM PowerVM VIOS](https://junglewise.ai/threats/technologies/powervm-vios): 73 vulnerabilities - [IBM Vios](https://junglewise.ai/threats/technologies/vios): 72 vulnerabilities - [IBM WebSphere Application Server](https://junglewise.ai/threats/technologies/websphere-application-server): 67 vulnerabilities - [IBM WebSphere Application Server Liberty](https://junglewise.ai/threats/technologies/websphere-application-server-liberty): 56 vulnerabilities - [IBM Verify Identity Access](https://junglewise.ai/threats/technologies/verify-identity-access): 50 vulnerabilities - [IBM Datastage On Cloud Pak For Data](https://junglewise.ai/threats/technologies/datastage-on-cloud-pak-for-data): 48 vulnerabilities - [IBM Mq](https://junglewise.ai/threats/technologies/mq): 46 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "IBM Qiskit-Sdk vulnerabilities", https://junglewise.ai/threats/technologies/qiskit-sdk, 10 November 2026.