VULNERABILITY INTELLIGENCE
CVE-2026-19611
CVSS score7.4 HIGH
EPSS probability0.89%
CISA KEVNot currently listed
Published2026-08-20
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
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.
Weakness classification
- CWE-173: Improper Handling of Alternate Encoding