High severity7.4NVD Advisory· Published Aug 20, 2026
CVE-2026-19611
CVE-2026-19611
Description
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.
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Affected products
1Patches
Vulnerability mechanics
References
2News mentions
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