Improper Handling of Alternate Encoding Affecting wildfly-elytron-password-impl package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.89% (59th percentile)

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  • Snyk IDSNYK-RHEL9-WILDFLYELYTRONPASSWORDIMPL-19166996
  • published22 Aug 2026
  • disclosed24 Jul 2026

Introduced: 24 Jul 2026

CVE-2026-19611  (opens in a new tab)
CWE-173  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 wildfly-elytron-password-impl.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wildfly-elytron-password-impl package and not the wildfly-elytron-password-impl package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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 Base Scores

version 3.1