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Advisory record · GHSA-8wrg-m8vm-5fvj

Authentication Bypass by Primary Weakness in github.com/kongchuanhujiao/server

CVSS 7.5 HighEPSS 0.014 · 71st percentile

Published by the GitHub Advisory Database at 15 Feb 2022, 01:57 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/kongchuanhujiao/serverGo<1.3.211.3.21
Identifiers
GHSA-8wrg-m8vm-5fvj · CVE-2021-21403
Weakness (CWE)
CWE-287 · CWE-305
Tags
Published
15 Feb 2022
Updated
8 Jul 2026

Machine-written summary

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

The Go module github.com/kongchuanhujiao/server is vulnerable in versions before 1.3.21 to an authentication bypass (CWE-305, Authentication Bypass by Primary Weakness). The source gives few details on how the bypass works or what access an attacker needs, but it states that all users are affected. Upgrade to version 1.3.21.

Written 6 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
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.014, the 71st percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:05 UTC First seen by agentprime
  2. 31 Oct 2026, 15:05 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.