CVE-2026-19611
Wildfly-elytron: org.wildfly.security/wildfly-elytron-password-impl: wildfly-elytron: password keyspace reduction via nfkc fullwidth folding
- State
- Published
- Severity
- 7.4 High
- Published
- Aug 20, 2026
- Updated
- Oct 15, 2026
- Reserved
- Aug 12, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.4 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | redhat |
Weaknesses
- CWE-173 Improper Handling of Alternate Encoding
Affected Products
| Product | Versions |
|---|---|
Red Hat Build of Apache Camel 3.33.3.SP2Red Hat |
|
Red Hat Build of Debezium 3.6Red Hat | |
Red Hat build of Quarkus 3.27.5.SP2Red Hat | |
Red Hat build of Quarkus 3.33.3.SP2Red Hat | |
Red Hat build of Apache Camel 4 for Quarkus 3Red Hat | |
Red Hat build of Debezium 3Red Hat | |
Red Hat Build of KeycloakRed Hat | |
Red Hat Build of KeycloakRed Hat | |
Red Hat Data Grid 8Red Hat | |
Red Hat JBoss Enterprise Application Platform 7Red Hat | |
Red Hat JBoss Enterprise Application Platform 7Red Hat | |
Red Hat JBoss Enterprise Application Platform 7Red Hat | |
Red Hat JBoss Enterprise Application Platform 8Red Hat | |
Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat | |
Red Hat Single Sign-On 7Red Hat |
References
- RHSA-2026:69440vendor-advisory
- RHSA-2026:69470vendor-advisory
- RHSA-2026:70257vendor-advisory
- RHSA-2026:83612vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-19611vdb-entry
- RHBZ#2514568issue-tracking
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.