CVE-2023-6291

Aliases:GHSA-mpwq-j3xf-7m5w
Advisory lineage Upstream: 0 Downstream: 6
Modified
Published: 26 Jan 2024, 14:23
Last modified:11 Nov 2025, 16:12

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7.1 HIGH
v3.1 (cve.org)
EPSS Score
0.18% LOW
0% probability -0.01%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

26 Jan 2024, 14:23
Published
Vulnerability first disclosed
11 Nov 2025, 16:12
Last Modified
Vulnerability information updated

Description

A flaw was found in the redirect_uri validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users.

CVSS Metrics

  • v3.1•HIGH•Score: 7.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

EPSS Trends

Current EPSS score: 0.18%• Percentile: 39%

Techniques & Countermeasures

  • CWE-601•URL Redirection to Untrusted Site ('Open Redirect')

    The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

Affected Systems

  • org.keycloak•keycloak-services

    < 23.0.3

  • redhat•keycloak

    < 22.0.7

  • redhat•migration_toolkit_for_applications

    6.0 | 7.0

  • redhat•openshift_container_platform

    4.11 | 4.12

  • redhat•openshift_container_platform_for_ibm_z

    4.9 | 4.10

  • redhat•openshift_container_platform_for_linuxone

    4.9 | 4.10

  • redhat•openshift_container_platform_for_power

    4.9 | 4.10

  • redhat•single_sign-on

    na | 7.6

References (18)