# CVE-2024-8883: Keycloak: vulnerable redirect uri validation results in open redirec > Attackers can redirect users to malicious URLs if specific localhost redirect URIs are configured, exposing authorization codes and enabling session hijacking. - **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** A user has to click or open something - **Fix available:** Yes - **Published:** 19 Sep 2024 - **Updated:** 4 Aug 2026 - **Also known as:** GHSA-w8gr-xwp4-r9f7, RHSA-2024:10386 ## What is CVE-2024-8883? CVE-2024-8883 is a medium-severity vulnerability in Redhat Build of Keycloak, published on 19 Sep 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link. ### Official 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. Weakness: CWE-601 (URL Redirection to Untrusted Site) ## Which versions are affected by CVE-2024-8883? 6 open source packages ship an affected version, including org.keycloak:keycloak-services. It affects 6 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `org.keycloak:keycloak-services` | Maven | All versions | 22.0.13 | | `org.keycloak:keycloak-services` | Maven | All versions | 22.0.13 | | `org.keycloak:keycloak-services` | Maven | From 23.0.0 | 24.0.8 | | `org.keycloak:keycloak-services` | Maven | From 23.0.0 | 24.0.8 | | `org.keycloak:keycloak-services` | Maven | From 25.0.0 | 25.0.6 | | `org.keycloak:keycloak-services` | Maven | From 25.0.0 | 25.0.6 | | `eap8-eap-product-conf-parent` | Red Hat:jboss_enterprise_application_platform:8.0::el8 | All versions | 0:800.4.1-1.GA_redhat_00001.1.el8eap | | `eap8-eap-product-conf-wildfly-ee-feature-pack` | Red Hat:jboss_enterprise_application_platform:8.0::el8 | All versions | 0:800.4.1-1.GA_redhat_00001.1.el8eap | | `eap8-wildfly` | Red Hat:jboss_enterprise_application_platform:8.0::el8 | All versions | 0:8.0.4-3.GA_redhat_00007.1.el8eap | | `eap8-wildfly-java-jdk11` | Red Hat:jboss_enterprise_application_platform:8.0::el8 | All versions | 0:8.0.4-3.GA_redhat_00007.1.el8eap | | `eap8-wildfly-java-jdk17` | Red Hat:jboss_enterprise_application_platform:8.0::el8 | All versions | 0:8.0.4-3.GA_redhat_00007.1.el8eap | | `eap8-wildfly-java-jdk21` | Red Hat:jboss_enterprise_application_platform:8.0::el8 | All versions | 0:8.0.4-3.GA_redhat_00007.1.el8eap | | `eap8-wildfly-modules` | Red Hat:jboss_enterprise_application_platform:8.0::el8 | All versions | 0:8.0.4-3.GA_redhat_00007.1.el8eap | | `eap8-eap-product-conf-parent` | Red Hat:jboss_enterprise_application_platform:8.0::el9 | All versions | 0:800.4.1-1.GA_redhat_00001.1.el9eap | | `eap8-eap-product-conf-wildfly-ee-feature-pack` | Red Hat:jboss_enterprise_application_platform:8.0::el9 | All versions | 0:800.4.1-1.GA_redhat_00001.1.el9eap | | `eap8-wildfly` | Red Hat:jboss_enterprise_application_platform:8.0::el9 | All versions | 0:8.0.4-3.GA_redhat_00007.1.el9eap | | `eap8-wildfly-java-jdk11` | Red Hat:jboss_enterprise_application_platform:8.0::el9 | All versions | 0:8.0.4-3.GA_redhat_00007.1.el9eap | | `eap8-wildfly-java-jdk17` | Red Hat:jboss_enterprise_application_platform:8.0::el9 | All versions | 0:8.0.4-3.GA_redhat_00007.1.el9eap | | `eap8-wildfly-java-jdk21` | Red Hat:jboss_enterprise_application_platform:8.0::el9 | All versions | 0:8.0.4-3.GA_redhat_00007.1.el9eap | | `eap8-wildfly-modules` | Red Hat:jboss_enterprise_application_platform:8.0::el9 | All versions | 0:8.0.4-3.GA_redhat_00007.1.el9eap | Products: Redhat Build of Keycloak, Redhat Openshift Container Platform, Redhat Openshift Container Platform for Ibm Z, Redhat Openshift Container Platform for Linuxone, Redhat Openshift Container Platform for Power, Redhat Single Sign-On. ## How do I fix CVE-2024-8883? Upgrade org.keycloak:keycloak-services to a fixed version for your release line: 22.0.13, 24.0.8 or 25.0.6. ## Is CVE-2024-8883 being exploited? It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-8883 exists. Public exploit code: - Keycloak - Open Redirect (nuclei): http/cves/2024/CVE-2024-8883.yaml ## Other vulnerabilities in Redhat Build of Keycloak - [CVE-2026-15572](https://insights.sbomify.com/CVE-2026-15572/): Keycloak-services: keycloak-services: dcr protocol mapper type-swap policy bypass allows privilege escalation (high 8.8) - [CVE-2026-3047](https://insights.sbomify.com/CVE-2026-3047/): Keycloak SAML Broken has Authentication Bypass by Primary Weakness (high 8.8) - [CVE-2026-15573](https://insights.sbomify.com/CVE-2026-15573/): Keycloak-services: keycloak-services: authorization bypass via unnormalized uri matching in pathmatcher (high 8.1) - [CVE-2026-16102](https://insights.sbomify.com/CVE-2026-16102/): Keycloak-services: keycloak-services: default dcr policy allows role forgery via user property mappers (high 8.1) - [CVE-2026-1609](https://insights.sbomify.com/CVE-2026-1609/): Org.keycloak/keycloak-quarkus-server: keycloak: unauthorized access via jwt authorization grant with disabled users (high 8.1) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2024-8883 and fix it if it is affected. What it is: CVE-2024-8883 is a medium-severity vulnerability in Redhat Build of Keycloak, published on 19 Sep 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link. Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-8883 exists. Affected packages and fixed versions: - org.keycloak:keycloak-services (Maven): affected all versions; fixed in 22.0.13 - org.keycloak:keycloak-services (Maven): affected all versions; fixed in 22.0.13 - org.keycloak:keycloak-services (Maven): affected from 23.0.0; fixed in 24.0.8 - org.keycloak:keycloak-services (Maven): affected from 23.0.0; fixed in 24.0.8 - org.keycloak:keycloak-services (Maven): affected from 25.0.0; fixed in 25.0.6 - org.keycloak:keycloak-services (Maven): affected from 25.0.0; fixed in 25.0.6 Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2024-8883/ (Markdown: https://insights.sbomify.com/CVE-2024-8883/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2024-8883 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-8883 - OSV: https://osv.dev/vulnerability/CVE-2024-8883 --- From sbomify Insights: https://insights.sbomify.com/CVE-2024-8883/ Summaries are generated and may contain mistakes; the official description above is the record.