{"id":"CVE-2026-19611","title":"A flaw was found in WildFly Elytron","summary":"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 a…","severity":"high","cvss":7.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-173"],"vendor":"Red Hat","product":"wildfly-elytron-password-impl","affected":["wildfly-elytron-password-impl (all versions)","wildfly-elytron-password-impl (all versions)","keycloak/rhbk-openshift-rhel9 (all versions)","wildfly-elytron-password-impl (all versions)","wildfly-elytron-password-impl (all versions)","jboss-eap-7/eap74-els-openjdk17-openshift-rhel8 (all versions)","jboss-eap-7/eap74-els-openjdk8-openshift-rhel8 (all versions)","wildfly-elytron-password-impl (all versions)","wildfly-elytron-password-impl (all versions)","wildfly-elytron-password-impl","wildfly-elytron-password-impl (all versions)"],"published":"2026-08-20","updated":"2026-09-21","sourceUpdated":"2026-09-21T18:17:07.910","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-19611","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:69470","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-19611","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2514568","label":"secalert@redhat.com"}],"tags":["nvd","cve.org"],"epss":0.00345,"epssPercentile":0.27964,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-21T16:38:31.494304Z"},"ingestedAt":"2026-09-21T17:49:53.182Z","slug":"CVE-2026-19611","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":40.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}