Advisory record · GHSA-hq3v-rg6f-6hx4

Use of Insufficiently Random Values in yiisoft/yii2-dev

CVSS 8.1 HighEPSS 0.019 · 79th percentile

Published by the GitHub Advisory Database at 1 Sept 2021, 18:35 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
yiisoft/yii2-devPackagist<2.0.432.0.43
Identifiers
GHSA-hq3v-rg6f-6hx4 · CVE-2021-3689 · PKSA-gr88-dv3s-951n
Weakness (CWE)
CWE-330 · CWE-1241
Published
1 Sept 2021
Updated
8 Nov 2023

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The yiisoft/yii2-dev package is affected in versions before 2.0.43. The source gives few details beyond the vulnerability class, which is use of a predictable algorithm in a random number generator, so the impact on applications is not described. Upgrade to version 2.0.43, which is the listed fix.

Written 5 Nov 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
8.1 High 3.0 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CNA (@huntrdev)
  • CISA KEV Not listed.
  • EPSS 0.019, the 79th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:33 UTC First seen by agentprime
  2. 31 Oct 2026, 14:33 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.