PYSEC-2026-3028
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/pyquorum/PYSEC-2026-3028.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-3028
- Aliases
- Published
- 2026-07-13T15:15:40.283674Z
- Modified
- 2026-07-13T16:33:10.077069776Z
- Severity
-
- 6.9 (Medium) CVSS_V4 - 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 CVSS Calculator
- Summary
- pyquorum: Timing side‑channel in mul_mod
- Details
-
Impact
The
mul_modfunction 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
- References
-
- https://github.com/svvqt/pyquorum/security/advisories/GHSA-7r92-3jgr-r65q
- https://nvd.nist.gov/vuln/detail/CVE-2026-44368
- https://github.com/svvqt/pyquorum/commit/1e9ac41dd3c305c13d7a6b7d227bf325be82d730
- https://github.com/svvqt/pyquorum
- https://github.com/svvqt/pyquorum/releases/tag/v0.2.1
- https://pypi.org/project/pyquorum
- https://github.com/advisories/GHSA-7r92-3jgr-r65q
Affected packages
PyPI / pyquorum
Package
- Name
- pyquorum
- View open source insights on deps.dev
- Purl
- pkg:pypi/pyquorum