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Advisory record · GHSA-69fp-7c8p-crjr

Keycloak exposes sensitive information in Pushed Authorization Requests (PAR)

CVSS 7.5 HighEPSS 0.0055 · 46th percentile

Published by the GitHub Advisory Database at 10 Jun 2024, 18:36 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.keycloak:keycloak-servicesMaven<24.0.524.0.5
Identifiers
GHSA-69fp-7c8p-crjr · CVE-2024-4540
Weakness (CWE)
CWE-200 · CWE-312 · CWE-922
Tags
Published
10 Jun 2024
Updated
7 Aug 2026

Machine-written summary

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

Keycloak (org.keycloak:keycloak-services, which is the Maven package) versions before 24.0.5 are affected. Client-provided parameters from Pushed Authorization Requests are returned in plain text in the KC_RESTART cookie in responses to request_uri authorization requests, which can lead to information disclosure. The source gives few details on the exact attacker position required. Upgrade to 24.0.5 or later.

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
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 (redhat)
  • CISA KEV Not listed.
  • EPSS 0.0055, the 46th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 10 Jun 2024, 13:28 UTC Published by the maintainers as a GitHub repository advisory
  2. 31 Oct 2026, 14:19 UTC First seen by agentprime
  3. 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.