Bug 2514568 (CVE-2026-19611) - CVE-2026-19611 wildfly-elytron: org.wildfly.security/wildfly-elytron-password-impl: wildfly-elytron: Password keyspace reduction via NFKC fullwidth folding
Summary: CVE-2026-19611 wildfly-elytron: org.wildfly.security/wildfly-elytron-password...
Keywords:
Status: NEW
Alias: CVE-2026-19611
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-12 11:40 UTC by OSIDB Bzimport
Modified: 2026-09-22 14:02 UTC (History)
56 users (show)

Fixed In Version:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:70257 0 None None None 2026-09-22 14:02:24 UTC

Description OSIDB Bzimport 2026-08-12 11:40:28 UTC 
WildFly Elytron password implementations (wildfly-elytron-password-impl, all supported versions reported) apply Unicode Normalization Form KC (NFKC) in AbstractPasswordImpl.getNormalizedPasswordBytes() before hashing and verification (BCrypt, SCRAM, Unix crypts, and related). NFKC compatibility mapping collapses fullwidth Latin characters (e.g. U+FF01–U+FF5E) to their ASCII equivalents, so a password the user believed contained non-ASCII fullwidth characters is stored and verified as the ASCII form. An attacker can therefore match such passwords with an ASCII-only dictionary. This is older SASLprep-style processing; modern PRECIS OpaqueString (RFC 8265) uses NFC and does not width-map passwords. CWE-173.
Comment 2 Jon Orris 2026-09-22 14:02:21 UTC 
This issue has been addressed in the following products:

  Red Hat Build of Apache Camel 3.33 for Quarkus 3.33.3.SP2

Via RHSA-2026:70257 https://access.redhat.com/errata/RHSA-2026:70257
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