CVE-2026-19611

CVE CVE-2026-19611EUVD EUVD-2026-63478Published 2026-08-20T15:58:24.000ZLast changed 2026-08-21T16:39:12.000ZCVSS 7.4

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Red Hat — Red Hat Build of Keycloak
• Red Hat — Red Hat Data Grid 8
• Red Hat — Red Hat JBoss Enterprise Application Platform 7
• Red Hat — Red Hat JBoss Enterprise Application Platform 8
• Red Hat — Red Hat JBoss Enterprise Application Platform Expansion Pack
• Red Hat — Red Hat Single Sign-On 7
• Red Hat — Red Hat build of Apache Camel 4 for Quarkus 3
• Red Hat — Red Hat build of Debezium 3
• Red Hat — Red Hat build of Quarkus

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Red Hat — Red Hat JBoss Enterprise Application Platform
• Red Hat — Red Hat build of Keycloak

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.