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Fencer Intel
medium 4.8

CVE-2026-112201 json

Keycloak-services: keycloak-services: login-failure upsert trusts mysql/mariadb affected-row count

published 21h ago modified 20h ago also EUVD-2026-123400

cvss
4.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
—
no EPSS score yet
public exploits
0
none known

Summary

A flaw was found in the login-failure storage component of Keycloak, the identity and access management solution. This issue specifically affects deployments using MySQL or MariaDB databases in a multi-node configuration. When multiple failed login attempts occur simultaneously for the same account, a synchronization error can cause the system to enter a repetitive loop that locks the user's record in the database. This results in legitimate login attempts for that user being blocked and failing with an error. Furthermore, because some failures are not correctly recorded during this loop, the system's brute-force protection may not accurately count all failed attempts.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-112201 updated cvss 4.8

keycloak-services: keycloak-services: Login-failure upsert trusts MySQL/MariaDB affected-row count

  • Red Hat Build of Keycloak rhbk/keycloak-rhel9, keycloak-services 26.6.7.redhat-00003 Red Hat Single Sign-On 7 keycloak-services 26.6.7.redhat-00003
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CVSS scores

assigned by version score vector
CNA 3.1 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
NVD 3.1 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

Affected products

  • Keycloak keycloak-services
  • Red Hat Red Hat Build of Keycloak
  • Red Hat Red Hat Single Sign-On 7

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.