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Vulnerability record/PUBLISHED/Published Nov 10, 2026 07:43:39 UTC

CVE-2026-125652

A flaw was found in the keycloak-services component of Keycloak, which provides the core authentication and authorization logic for the identity provider. The issue occurs when a user initiates a login after visiting the password reset page, causing the system to skip mandatory security checks for Proof Key for Code Exchange (PKCE). This could allow an attacker who intercepts a login code to gain unauthorized access to the user's account without needing the required security verifier.

Base score6.8/ 10
SeverityMediumCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes
Base severityMedium
Attack vectorNetworkAV
Attack complexityHighAC
Privileges requiredNonePR
User interactionRequiredUI
ScopeUnchangedS
Confidentiality impactHighC
Integrity impactHighI
Availability impactNoneA
CVSS vector stringCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authorityredhat
Last updatedNov 10, 2026 07:43:39 UTC
PublishedNov 10, 2026 07:43:39 UTC
ReservedNov 10, 2026 07:15:03 UTC

Credits

  • Red Hat would like to thank Adel Assakaf (Oteria) for reporting this issue.