CVE-2026-19611

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.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-19611
https://bugzilla.redhat.com/show_bug.cgi?id=2514568

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-20 16:17

Updated : 2026-09-03 18:17

NVD link : CVE-2026-19611

Mitre link : CVE-2026-19611

CVE.ORG link : CVE-2026-19611

JSON object : View

Products Affected

No product.

CWE

CWE-173

Improper Handling of Alternate Encoding

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