Improper Handling of Alternate Encoding Affecting keycloak-fips-26.6 package, versions <26.6.7-r5


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.56% (44th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CHAINGUARDLATEST-KEYCLOAKFIPS266-20338294
  • published1 Oct 2026
  • disclosed20 Aug 2026

Introduced: 20 Aug 2026

CVE-2026-19611  (opens in a new tab)
CWE-173  (opens in a new tab)

How to fix?

Upgrade Chainguard keycloak-fips-26.6 to version 26.6.7-r5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream keycloak-fips-26.6 package and not the keycloak-fips-26.6 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1