A flaw was found in WildFly Elytron. Password hashing and verification normalize input with Unicode NFKC, which can collapse fullwidth characters to ASCII equivalents. A remote attacker can more easily guess affected passwords by using an ASCII-only dictionary against accounts whose passwords were intended to include those non-ASCII characters, leading to unauthorized access.

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Fixes

Solution

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Workaround

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.

History

Fri, 21 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat build Of Apache Camel For Quarkus
Redhat build Of Debezium 3
Redhat build Of Keycloak
Redhat build Of Quarkus
Redhat data Grid 8
Redhat jboss Enterprise Application Platform Expansion Pack
Vendors & Products Redhat build Of Apache Camel For Quarkus
Redhat build Of Debezium 3
Redhat build Of Keycloak
Redhat build Of Quarkus
Redhat data Grid 8
Redhat jboss Enterprise Application Platform Expansion Pack

Fri, 21 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 20 Aug 2026 16:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in WildFly Elytron. Password hashing and verification normalize input with Unicode NFKC, which can collapse fullwidth characters to ASCII equivalents. A remote attacker can more easily guess affected passwords by using an ASCII-only dictionary against accounts whose passwords were intended to include those non-ASCII characters, leading to unauthorized access.
Title Wildfly-elytron: org.wildfly.security/wildfly-elytron-password-impl: wildfly-elytron: password keyspace reduction via nfkc fullwidth folding
First Time appeared Redhat
Redhat build Keycloak
Redhat camel Quarkus
Redhat debezium
Redhat jboss Data Grid
Redhat jboss Enterprise Application Platform
Redhat jbosseapxp
Redhat quarkus
Redhat red Hat Single Sign On
Weaknesses CWE-173
CPEs cpe:/a:redhat:build_keycloak:
cpe:/a:redhat:camel_quarkus:3
cpe:/a:redhat:debezium:3
cpe:/a:redhat:jboss_data_grid:8
cpe:/a:redhat:jboss_enterprise_application_platform:7
cpe:/a:redhat:jboss_enterprise_application_platform:8
cpe:/a:redhat:jbosseapxp
cpe:/a:redhat:quarkus:3
cpe:/a:redhat:red_hat_single_sign_on:7
Vendors & Products Redhat
Redhat build Keycloak
Redhat camel Quarkus
Redhat debezium
Redhat jboss Data Grid
Redhat jboss Enterprise Application Platform
Redhat jbosseapxp
Redhat quarkus
Redhat red Hat Single Sign On
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-21T16:39:12.830Z

Reserved: 2026-08-12T11:04:06.893Z

Link: CVE-2026-19611

cve-icon Vulnrichment

Updated: 2026-08-21T16:38:38.483Z

cve-icon NVD

Status : Received

Published: 2026-08-20T16:17:18.293

Modified: 2026-08-21T17:16:30.193

Link: CVE-2026-19611

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T21:15:44Z

Weaknesses