CVE-2026-4870 Qiskit SDK is vulnerable to specific functions may recurse too deeply and overflow the available stack space, when encountering certain classical expressions.

IBM Qiskit SDK 0.43.0 through 2.5.0 could allow an attacker to trigger a segmentation fault leading to a denial of service due to uncontrolled recursion in the parser...

CVE-2026-4870

CVE-2026-4870: IBM Qiskit SDK versions 0.43.0 through 2.5.0 are affected by a recursion-related issue in the parser that can trigger a segmentation fault and cause a denial of service. Public details in NVD/CVE records confirm the affected product range and the root cause as uncontrolled deep rec...

EUVD-2026-36575

IBM Qiskit SDK 0.43.0 through 2.5.0 could allow an attacker to trigger a segmentation fault leading to a denial of service due to uncontrolled recursion in the parser...

Security Bulletin: Qiskit SDK is vulnerable to specific functions may recurse too deeply and overflow the available stack space, when encountering certain classical expressions.

Summary The functions qiskit.qasm2.load and qiskit.qasm2.loads may recurse too deeply and overflow the available stack space, when encountering certain classical expressions. Vulnerability Details CVEID:CVE-2026-4870 DESCRIPTION: IBM Qiskit SDK could allow an attacker to trigger a segmentation...

PT-2026-48989

Name of the Vulnerable Software and Affected Versions IBM Qiskit SDK versions 0.43.0 through 2.5.0 Description Uncontrolled recursion in the parser can allow an attacker to trigger a segmentation fault, resulting in a denial of service. A segmentation fault occurs when a program attempts to acces...

CVE-2026-4870: Uncontrolled Recursion

IBM Qiskit SDK 0.43.0 through 2.5.0 could allow an attacker to trigger a segmentation fault leading to a denial of service due to uncontrolled recursion in the parser...

Quantum-Safe Code Auditing: LLM-Assisted Static Analysis and Quantum-Aware Risk Scoring for Post-Quantum Cryptography Migration

The impending arrival of cryptographically relevant quantum computers CRQCs threatens the security foundations of modern software: Shor's algorithm breaks RSA, ECDSA, ECDH, and Diffie-Hellman, while Grover's algorithm reduces the effective security of symmetric and hash-based schemes. Despite NIS...

Secure Quantum Communication: Simulation and Analysis of Quantum Key Distribution Protocols

Quantum computing poses significant threats to conventional cryptographic techniques such as RSA and AES, motivating the need for quantum secure communication methods. Quantum Key Distribution QKD offers information theoretic security based on fundamental quantum principles. This paper presents a...

QSpy: A Quantum RAT for Circuit Spying and IP Theft

As quantum computing platforms increasingly adopt cloud-based execution, users submit quantum circuits to remote compilers and backends, trusting that what they submit is exactly what will be run. This shift introduces new trust assumptions in the submission pipeline, which remain largely...

CVE-2025-1403

Qiskit SDK 0.45.0 through 1.2.4 could allow a remote attacker to cause a denial of service using a maliciously crafted QPY file containing a malformed symengine serialization stream which can cause a segfault within the symengine library...

EUVD-2024-1034

Malicious code in bioql PyPI...

EUVD-2025-4473

Malicious code in bioql PyPI...

EUVD-2025-6417

Malicious code in bioql PyPI...

CVE-2024-29032

Qiskit IBM Runtime is an environment that streamlines quantum computations and provides optimal implementations of the Qiskit quantum computing SDK. Starting in version 0.1.0 and prior to version 0.21.2, deserializing json data using qiskitibmruntime.RuntimeDecoder can lead to arbitrary code...

Security Bulletin: Qiskit SDK Vulnerability Allows Remote Attackers to Cause Denial of Service via Maliciously Crafted QPY File

Summary A maliciously crafted QPY file containing a malformed symengine serialization stream as part of the larger QPY serialization of a ParameterExpression object can cause a segfault within the symengine library, allowing an attacker to terminate the hosting process. Vulnerability Details...

Arbitrary Code Execution (ACE)

Qiskit is vulnerable to Arbitrary Code Execution ACE. The vulnerability is due to unsafe deserialization in the qiskit.qpy.load function, which allows a maliciously crafted QPY file to execute embedded Python code without privilege escalation...

CVE-2025-2000

A maliciously crafted QPY file can potential execute arbitrary-code embedded in the payload without privilege escalation when deserialising QPY formats 13. A python process calling Qiskit 0.18.0 through 1.4.1's qiskit.qpy.load function could potentially execute any arbitrary Python code embedded...

Deserialization of Untrusted Data

Overview qiskit is an An open-source SDK for working with quantum computers at the level of extended quantum circuits, operators, and primitives. Affected versions of this package are vulnerable to Deserialization of Untrusted Data through the qiskit.qpy.load function. An attacker can execute...

Deserialization of Untrusted Data

Overview qiskit-terra is a Software for developing quantum computing programs Affected versions of this package are vulnerable to Deserialization of Untrusted Data through the qiskit.qpy.load function. An attacker can execute arbitrary code by crafting a malicious QPY file and loading it via this...

Qiskit allows arbitrary code execution decoding QPY format versions < 13

Impact A maliciously crafted QPY file can potentially execute arbitrary-code embedded in the payload without privilege escalation when deserializing QPY formats 13. A python process calling Qiskit's qiskit.qpy.load function could potentially execute any arbitrary Python code embedded in the corre...