CVE-2024-8883 — keycloak-services
MEDIUMCVE-2024-8883 is a medium-severity (CVSS 6.1) Open Redirect vulnerability in org.keycloak:keycloak-services. A fix is available for org.keycloak:keycloak-services — see the affected versions and patch details below.
Keycloak: vulnerable redirect uri validation results in open redirec
Exploitation Status
No confirmed exploitation observed yet
- A successful exploit gives an attacker total control of the affected component, not partial access.
- 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-2024-8883.
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 misconfiguration flaw was found in Keycloak. This issue can allow an attacker to redirect users to an arbitrary URL if a 'Valid Redirect URI' is set to http://localhost or http://127.0.0.1, enabling sensitive information such as authorization codes to be exposed to the attacker, potentially leading to session hijacking.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.keycloak:keycloak-services | all versions | 22.0.13org.keycloak:keycloak-services:22.0.13 |
| ☕Maven | org.keycloak:keycloak-services | ≥ 23.0.0&&< 24.0.8 | 24.0.8org.keycloak:keycloak-services:24.0.8 |
| ☕Maven | org.keycloak:keycloak-services | ≥ 25.0.0&&< 25.0.6 | 25.0.6org.keycloak:keycloak-services:25.0.6 |
Affected Products
build of keycloakredhatopenshift container platformredhatopenshift container platform for ibm zredhatopenshift container platform for linuxoneredhatopenshift container platform for powerredhatsingle sign-onredhatDetection & 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 22.0.13 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-8883 is resolved across your whole dependency graph.
Workarounds
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.
How to detect CVE-2024-8883
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2024-8883 -u https://target- Template
- Keycloak - Open Redirect
- Severity
- medium
- Impact
- Attackers can redirect users to malicious URLs and capture sensitive information such as authorization codes and session tokens, potentially leading to session hijacking and account compromise.
- Remediation
- Update Keycloak configuration to avoid using localhost or 127.0.0.1 as Valid Redirect URIs, and apply security patches addressing the open redirect vulnerability.
Template by ProjectDiscovery nuclei-templates (iamnoooob, rootxharsh, pdresearch), MIT licensed. View the full template. Scan only systems you are authorised to test.
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.
Moderate impact affects Red Hat Enterprise Application Platform, Red Hat Build of Keycloak, and Red Hat Single Sign-On. When a client is configured with a Valid Redirect URI of http://localhost or http://127.0.0.1, a remote attacker can send a malicious authorization link that causes Keycloak to redirect the user to…
Mitigation for this issue is either not available or the currently available options do not 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-2024-8883 (CC BY 4.0)
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Build of Keycloak | keycloak-services | RHSA-2024:6888 |
| Red Hat Build of Keycloak | keycloak-services | RHSA-2024:6890 |
| Red Hat build of Keycloak 22 | rhbk/keycloak-operator-bundle:22.0.13-1 | RHSA-2024:6887 |
| Red Hat build of Keycloak 24 | rhbk/keycloak-operator-bundle:24.0.8-1 | RHSA-2024:6889 |
| Red Hat JBoss Enterprise Application Platform 8 | see advisory | RHSA-2024:10385 |
| Red Hat JBoss Enterprise Application Platform 8 | see advisory | RHSA-2024:8826 |
| Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8 | eap8-eap-product-conf-parent-0:800.4.1-1.GA_redhat_00001.1.el8eap | RHSA-2024:10386 |
| Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8 | eap8-activemq-artemis-0:2.33.0-1.redhat_00015.1.el8eap | RHSA-2024:8823 |
Frequently Asked Questions
Is CVE-2024-8883 in your dependencies?
Find it across Maven, including transitive dependencies.