CVE-2024-4629 is a medium-severity (CVSS 6.5) CWE-837 vulnerability in org.keycloak:keycloak-services. A fix is available for org.keycloak:keycloak-services — see the affected versions and patch details below.
Keycloak: potential bypass of brute force protection
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2024-4629.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
org.keycloak:keycloak-services☕org.keycloak:keycloak-services☕org.keycloak:keycloak-servicesReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
A vulnerability was found in Keycloak. This flaw allows attackers to bypass brute force protection by exploiting the timing of login attempts. By initiating multiple login requests simultaneously, attackers can exceed the configured limits for failed attempts before the system locks them out. This timing loophole enables attackers to make more guesses at passwords than intended, potentially compromising account security on affected systems.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.keycloak:keycloak-services | all versions | 22.0.12org.keycloak:keycloak-services:22.0.12 |
| ☕Maven | org.keycloak:keycloak-services | ≥ 23.0.0&&< 24.0.7 | 24.0.7org.keycloak:keycloak-services:24.0.7 |
| ☕Maven | org.keycloak:keycloak-services | ≥ 25.0.0&&< 25.0.4 | 25.0.4org.keycloak:keycloak-services:25.0.4 |
Affected Products
build of keycloakredhatkeycloakredhatopenshift container platformredhatopenshift container platform for linuxoneredhatopenshift container platform for powerredhatopenshift container platform ibm z systemsredhatDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.keycloak:keycloak-services, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.keycloak:keycloak-services to 22.0.12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-4629 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
This vulnerability is classified as low severity due to its potential impact on account security in Keycloak environments. By exploiting the timing between login attempts and the application of brute force protection, attackers can circumvent lockout mechanisms intended to prevent multiple failed authentication…
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.Source: Red Hat security advisory for CVE-2024-4629 (CC BY 4.0)
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Build of Keycloak | org.keycloak-keycloak-parent | RHSA-2024:6501 |
| Red Hat build of Keycloak 22 | rhbk/keycloak-operator-bundle:22.0.12-1 | RHSA-2024:6500 |
| Red Hat Single Sign-On 7 | org.keycloak-keycloak-parent | RHSA-2024:6499 |
| Red Hat Single Sign-On 7.6 for RHEL 7 | rh-sso7-keycloak-0:18.0.16-1.redhat_00001.1.el7sso | RHSA-2024:6493 |
| Red Hat Single Sign-On 7.6 for RHEL 8 | rh-sso7-keycloak-0:18.0.16-1.redhat_00001.1.el8sso | RHSA-2024:6494 |
| Red Hat Single Sign-On 7.6 for RHEL 9 | rh-sso7-keycloak-0:18.0.16-1.redhat_00001.1.el9sso | RHSA-2024:6495 |
| RHEL-8 based Middleware Containers | rh-sso-7/sso76-openshift-rhel8:7.6-52 | RHSA-2024:6497 |
Frequently Asked Questions
Is CVE-2024-4629 in your dependencies?
Find it across Maven, including transitive dependencies.