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Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
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Thu, 29 Oct 2026 06:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in the HOTP authentication mechanism of the keycloak-services component, which provides identity and access management services. The issue occurs because the system validates a one-time password and updates its internal counter in two separate steps without proper locking. An attacker with a users password could exploit this timing gap to use a single one-time code to log in multiple times simultaneously. | |
| Title | Keycloak-services: keycloak-services: hotp race condition allows single otp code reuse across concurrent logins | |
| First Time appeared |
Redhat
Redhat build Keycloak Redhat red Hat Single Sign On |
|
| Weaknesses | CWE-362 | |
| CPEs | cpe:/a:redhat:build_keycloak: cpe:/a:redhat:red_hat_single_sign_on:7 |
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| Vendors & Products |
Redhat
Redhat build Keycloak Redhat red Hat Single Sign On |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-10-29T06:22:11.871Z
Reserved: 2026-10-27T14:17:43.932Z
Link: CVE-2026-118030
No data.
Status : Awaiting Analysis
Published: 2026-10-29T07:16:44.990
Modified: 2026-10-29T07:16:45.103
Link: CVE-2026-118030
No data.
OpenCVE Enrichment
No data.
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CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')