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MEDIUM severity

CVE-2018-14658 — keycloak-core

MEDIUM

CVE-2018-14658 is a medium-severity (CVSS 6.1) Open Redirect vulnerability in org.keycloak:keycloak-core. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Keycloak Open Redirect

Also known asGHSA-3qh2-mccc-q5m6
Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs66th percentile — riskier than 66% of all scored CVEsHighest risk
0.00%0.53%1.06%1.60%0.2%1.1%May 26Sep 26Nov 26

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

1 pkg affected
☕org.keycloak:keycloak-core

Real-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 flaw was found in JBOSS Keycloak 3.2.1.Final. The Redirect URL for both Login and Logout are not normalized in org.keycloak.protocol.oidc.utils.RedirectUtils before the redirect url is verified. This can lead to an Open Redirection attack

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
☕Mavenorg.keycloak:keycloak-coreall versionsNo fix

Affected Products

1 product · 1 configurations
Application
keycloakredhat
1 version
3.2.1

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.keycloak:keycloak-core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of org.keycloak:keycloak-core for CVE-2018-14658. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.

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.

Red HatModerate
ProductFixed inAdvisory
Red Hat Single Sign-On 7.2.5 zipsee advisoryRHSA-2018:3595
Red Hat Single Sign-On 7.2 for RHEL 6rh-sso7-keycloak-0:3.4.14-1.Final_redhat_00001.1.jbcs.el6RHSA-2018:3592
Red Hat Single Sign-On 7.2 for RHEL 7rh-sso7-keycloak-0:3.4.14-1.Final_redhat_00001.1.jbcs.el7RHSA-2018:3593

Frequently Asked Questions

A flaw was found in JBOSS Keycloak 3.2.1.Final. The Redirect URL for both Login and Logout are not normalized in org.keycloak.protocol.oidc.utils.RedirectUtils before the redirect url is verified. This can lead to an Open Redirection attack
O3 Security · Impact-Aware SCA

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CVE-2018-14658: keycloak-core: Keycloak Open Redirect