CVE-2026-44368

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Source

https://cve.org/CVERecord?id=CVE-2026-44368

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44368.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-44368

Aliases

Published

2026-05-13T20:18:12.910Z

Modified

2026-07-13T16:43:13.169816775Z

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

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.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-208"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44368.json"
}

References

Affected packages

Git / github.com/svvqt/pyquorum

Affected ranges

Type

GIT

Repo

https://github.com/svvqt/pyquorum

Events

Introduced

Fixed

fde2aa02ea1f4a66dd42aa6b59a6071335d1e8c3

Database specific

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.2.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v0.*

v0.1.2

v0.1.3

v0.2.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44368.json"