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Advisory record · GHSA-5q66-v53q-pm35

Keycloak vulnerable to Plaintext Storage of User Password

CVSS 8.8 HighEPSS 0.0057 · 47th percentile

Published by the GitHub Advisory Database at 12 Sept 2023, 21:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.keycloak:keycloak-coreMaven>=22.0.2, <22.0.322.0.3
Identifiers
GHSA-5q66-v53q-pm35 · CVE-2023-4918
Weakness (CWE)
CWE-256 · CWE-319
Tags
Published
12 Sept 2023
Updated
16 Jul 2026

Machine-written summary

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

Keycloak Core (org.keycloak:keycloak-core, Maven) versions 22.0.2 up to but not including 22.0.3 are affected. When users self-register, their password and password-confirm form fields are stored as plaintext user attributes, so any entity with proper rights or roles can read those passwords in clear text. Upgrade to version 22.0.3. Until then, disabling self-registration in all realms is a mitigation the source describes.

Written 2 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
8.8 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CNA (redhat)
  • CISA KEV Not listed.
  • EPSS 0.0057, the 47th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:19 UTC First seen by agentprime
  2. 31 Oct 2026, 14:19 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.