Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-44368— PyQuorum: Timing side‑channel in mul_mod

Quick assessment

Affected
svvqt pyquorum
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PyQuorum是svvqt个人开发者的一个密钥管理与秘密共享的加密库。 PyQuorum 0.2.1之前版本存在安全漏洞，该漏洞源于mul_mod函数通过二进制展开循环实现乘法，其执行时间取决于第二个操作数的汉明重量，攻击者可通过测量秘密共享操作的时间逐步恢复共享值。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.31% · P24

Affected Version Matrix 1

VendorProduct Version RangeStatus
svvqt pyquorum < 0.2.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-44368

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
PyQuorum: Timing side‑channel in mul_mod
Source: CVE Program / CVE List V5
Vulnerability Description
PyQuorum is a cryptographic library for secret sharing and key management. Prior to 0.2.1, 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. This vulnerability is fixed in 0.2.1.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
通过时间差异性导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
PyQuorum 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PyQuorum是svvqt个人开发者的一个密钥管理与秘密共享的加密库。 PyQuorum 0.2.1之前版本存在安全漏洞，该漏洞源于mul_mod函数通过二进制展开循环实现乘法，其执行时间取决于第二个操作数的汉明重量，攻击者可通过测量秘密共享操作的时间逐步恢复共享值。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
svvqt pyquorum < 0.2.1 -

II. Public POCs for CVE-2026-44368

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-44368

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-44368 (1)

IV. Related Vulnerabilities

Same weakness: CWE-208

V. Comments for CVE-2026-44368

No comments yet

Leave a comment