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CVE-2026-44368

MEDIUM
Observable Timing Discrepancy (CWE-208)
2026-05-06 https://github.com/svvqt/pyquorum GHSA-7r92-3jgr-r65q
Information Disclosure
6.9
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
CVSS changed
May 13, 2026 - 21:22 NVD
6.9 (MEDIUM)
CVE Published
May 06, 2026 - 22:40 nvd
MEDIUM

DescriptionNVD

Impact

The mul_mod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand (the exponent). An attacker who can measure the time of secret‑sharing operations (e.g., via a remote service) could progressively recover the values of shares, ultimately leading to secret reconstruction.

Patches

https://github.com/svvqt/pyquorum/releases/tag/v0.2.1

Analysis

The mul_mod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand (the exponent). An attacker who can measure the time of secret‑sharing operations (e.g., via a remote service) could progressively recover the values of shares, ultimately leading to secret reconstruction. …

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CVE-2026-44368 vulnerability details – vuln.today
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