CVEvulnerability

CVE-2020-27838

6.5 MEDIUM Published 2021-03-08 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-03-08
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
CWE-287

Description

A flaw was found in keycloak in versions prior to 13.0.0. The client registration endpoint allows fetching information about PUBLIC clients (like client secret) without authentication which could be an issue if the same PUBLIC client changed to CONFIDENTIAL later. The highest threat from this vulnerability is to data confidentiality.

Affected configurations

• redhat keycloak (< 13.0.0) • redhat single sign-on 7.0

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References