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Advisory record · GHSA-w3g8-fp6j-wvqw

SM2-PKE has 32-bit Biased Nonce Vulnerability

CVSS 8.7 HighEPSS 0.0027 · 19th percentile

Published by the GitHub Advisory Database at 9 Jan 2026, 22:27 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
sm2crates.io>=0.14.0-pre.0, <=0.14.0-rc.4No fixed version yet
Identifiers
GHSA-w3g8-fp6j-wvqw · CVE-2026-22698
Weakness (CWE)
CWE-331
Tags
Published
9 Jan 2026
Updated
3 Feb 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.7 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0027, the 19th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:19 UTC First seen by agentprime
  2. 31 Oct 2026, 15:19 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.