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CVE-2026-19611— Wildfly-elytron: org.wildfly.security/wildfly-elytron-password-impl: wildfly-elytron: password keyspace reduction via nfkc fullwidth folding

Quick assessment

Affected
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WildFly Elytron 中发现了一个缺陷。密码哈希和验证过程使用 Unicode NFKC 规范化输入，这可能导致全角字符被压缩（规范化）为对应的 ASCII 字符。远程攻击者可以通过使用仅包含 ASCII 字符的字典，对那些本应包含非 ASCII 字符的账户密码进行猜测，从而更容易破解受影响用户的密码，导致未经授权的访问。

CVSS 7.4 · High EPSS 0.34% · P28

Possible ATT&CK Techniques 1 AI

T1110 · Brute Force
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I. Basic Information for CVE-2026-19611

Vulnerability Information
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Vulnerability Title
Wildfly-elytron: org.wildfly.security/wildfly-elytron-password-impl: wildfly-elytron: password keyspace reduction via nfkc fullwidth folding
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
候选编码方案处理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3 - cpe:/a:redhat:camel_quarkus:3
Red Hat Red Hat build of Debezium 3 - cpe:/a:redhat:debezium:3
Red Hat Red Hat Build of Keycloak - cpe:/a:redhat:build_keycloak:
Red Hat Red Hat Build of Keycloak - cpe:/a:redhat:build_keycloak:
Red Hat Red Hat build of Quarkus - cpe:/a:redhat:quarkus:3
Red Hat Red Hat Data Grid 8 - cpe:/a:redhat:jboss_data_grid:8
Red Hat Red Hat JBoss Enterprise Application Platform 7 - cpe:/a:redhat:jboss_enterprise_application_platform:7
Red Hat Red Hat JBoss Enterprise Application Platform 7 - cpe:/a:redhat:jboss_enterprise_application_platform:7
Red Hat Red Hat JBoss Enterprise Application Platform 7 - cpe:/a:redhat:jboss_enterprise_application_platform:7
Red Hat Red Hat JBoss Enterprise Application Platform 8 - cpe:/a:redhat:jboss_enterprise_application_platform:8
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack - cpe:/a:redhat:jbosseapxp
Red Hat Red Hat Single Sign-On 7 - cpe:/a:redhat:red_hat_single_sign_on:7

II. Public POCs for CVE-2026-19611

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III. Intelligence Information for CVE-2026-19611

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Vendor Advisories for CVE-2026-19611 (2)

Same Patch Batch · Red Hat · 2026-08-20 · 16 CVEs total

CVE-2026-67567 9.9 CRITICAL Multicloud-operators-subscription: multicloud-operators-subscription: helmrelease chart ap
CVE-2026-66788 9.9 CRITICAL Lighthouse: lighthouse: arbitrary local-namespace injection via attacker-controlled labels
CVE-2026-66785 9.9 CRITICAL Submariner: submariner: unvalidated endpoint.spec.subnets propagated into wireguard allowe
CVE-2026-11861 9.6 CRITICAL Freeipa: idm: ipa: freeipa: obtaining tgs with impersonating cname through trust relations
CVE-2026-13097 9.1 CRITICAL Ipa: privilege escalation via krbcanonicalname manipulation due to realm-unaware uniquenes
CVE-2026-66787 8.7 HIGH Lighthouse: lighthouse: cross-cluster dns spoofing via unvalidated endpointslice and servi
CVE-2026-77176 8.1 HIGH Kata-containers: insufficient validation of createcontainer mount and storage rules in gen
CVE-2026-18917 7.8 HIGH Libvirt: integer overflow in nodegetfreepages rpc handler leading to heap buffer overflow
CVE-2026-19582 7.8 HIGH Binutils: stack buffer overflow in gnu binutils in rsrc_print_name from an untrusted pe fi
CVE-2026-73137 7.7 HIGH Multicloud-operators-subscription: multicloud-operators-subscription: cross-namespace secr
CVE-2026-73198 7.5 HIGH Ipa: freeipa: unauthenticated dos in `/ipa/i18n_messages` via unbounded request body read
CVE-2026-73197 7.5 HIGH Ipa: freeipa: unauthenticated dos in `/ipa/migration/migration.py` via unbounded request b
CVE-2026-73199 6.5 MEDIUM Ipa: freeipa: null pointer dereference in `ipa-enrollment` extended operation (`join_oid`)
CVE-2026-77014 5.3 MEDIUM Libsoup: libsoup: integer truncation in sort_ranges() comparator causes silent omission of
CVE-2026-73196 4.3 MEDIUM Ipa: freeipa: authenticated dos in `otptoken-add` via unbounded otp key decoding/re-encodi

IV. Related Vulnerabilities

Same vendor: Red Hat
Same weakness: CWE-173

V. Comments for CVE-2026-19611

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