Keycloak: redirect_uri validation bypass
Priority LOW 33CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Partial Red Hat: 8 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-601.
Summary
A flaw was found in the redirect_uri validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0095 61st percentileScored 2026-11-07
Fix Partial org.keycloak:keycloak-services (Maven): 23.0.3Red Hat: 12 advisoriesRed Hat: 8 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 22 | — | 22.0.7-1 | Patch available | CNA |
| Red Hat | Red Hat build of Keycloak 22 | — | 22-6 | Patch available | CNA |
| Red Hat | Red Hat build of Keycloak 22 | — | 22-9 | Patch available | CNA |
| Red Hat | Red Hat build of Keycloak 22.0.7 | — | — | Not affected | CNA |
| Red Hat | Red Hat Single Sign-On 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 7 | — | 18.0.11-2.redhat_00003.1.el7sso | Patch available | CNA |
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 7 | — | 18.0.12-1.redhat_00001.1.el7sso | Patch available | CNA |
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 8 | — | 18.0.11-2.redhat_00003.1.el8sso | Patch available | CNA |
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 8 | — | 18.0.12-1.redhat_00001.1.el8sso | Patch available | CNA |
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 9 | — | 18.0.11-2.redhat_00003.1.el9sso | Patch available | CNA |
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 9 | — | 18.0.12-1.redhat_00001.1.el9sso | Patch available | CNA |
| Red Hat | RHEL-8 based Middleware Containers | — | 7.6-38 | Patch available | CNA |
| Red Hat | RHEL-8 based Middleware Containers | — | 7.6.6-2 | Patch available | CNA |
| Red Hat | RHEL-8 based Middleware Containers | — | 7.6-41 | Patch available | CNA |
| Red Hat | Single Sign-On 7.6.6 | — | — | Not affected | CNA |
| Red Hat | Migration Toolkit for Applications 6 | — | — | No fix listed | CNA |
| Red Hat | Migration Toolkit for Applications 7 | — | — | Not affected | CNA |
| Red Hat | OpenShift Serverless | — | — | Not affected | CNA |
| Red Hat | Red Hat Data Grid 8 | — | — | Not affected | CNA |
| Red Hat | Red Hat Decision Manager 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat Fuse 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat JBoss Data Grid 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat JBoss Enterprise Application Platform 6 | — | — | Not affected | CNA |
| Red Hat | Red Hat Process Automation 7 | — | — | Not affected | CNA |
| — | org.keycloak:keycloak-services (Maven) | before 23.0.3 | 23.0.3 | Patch available | GHSA-mpwq-j3xf-7m5w |
- Red Hat build of Keycloak 22 VendorRed Hat Affected — Fixed in 22.0.7-1 Patch available CNA
- Red Hat build of Keycloak 22 VendorRed Hat Affected — Fixed in 22-6 Patch available CNA
- Red Hat build of Keycloak 22 VendorRed Hat Affected — Fixed in 22-9 Patch available CNA
- Red Hat build of Keycloak 22.0.7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Single Sign-On 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Single Sign-On 7.6 for RHEL 7 VendorRed Hat Affected — Fixed in 18.0.11-2.redhat_00003.1.el7sso Patch available CNA
- Red Hat Single Sign-On 7.6 for RHEL 7 VendorRed Hat Affected — Fixed in 18.0.12-1.redhat_00001.1.el7sso Patch available CNA
- Red Hat Single Sign-On 7.6 for RHEL 8 VendorRed Hat Affected — Fixed in 18.0.11-2.redhat_00003.1.el8sso Patch available CNA
- Red Hat Single Sign-On 7.6 for RHEL 8 VendorRed Hat Affected — Fixed in 18.0.12-1.redhat_00001.1.el8sso Patch available CNA
- Red Hat Single Sign-On 7.6 for RHEL 9 VendorRed Hat Affected — Fixed in 18.0.11-2.redhat_00003.1.el9sso Patch available CNA
- Red Hat Single Sign-On 7.6 for RHEL 9 VendorRed Hat Affected — Fixed in 18.0.12-1.redhat_00001.1.el9sso Patch available CNA
- RHEL-8 based Middleware Containers VendorRed Hat Affected — Fixed in 7.6-38 Patch available CNA
- RHEL-8 based Middleware Containers VendorRed Hat Affected — Fixed in 7.6.6-2 Patch available CNA
- RHEL-8 based Middleware Containers VendorRed Hat Affected — Fixed in 7.6-41 Patch available CNA
- Single Sign-On 7.6.6 VendorRed Hat Affected — Fixed in — Not affected CNA
- Migration Toolkit for Applications 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Migration Toolkit for Applications 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- OpenShift Serverless VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Data Grid 8 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Decision Manager 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Fuse 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat JBoss Data Grid 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat JBoss Enterprise Application Platform 6 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Process Automation 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- org.keycloak:keycloak-services (Maven) Vendor— Affected before 23.0.3 Fixed in 23.0.3 Patch available GHSA-mpwq-j3xf-7m5w
CPE configurations NVD · 16
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* | before 22.0.7 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:single_sign-on:-:*:*:*:text-only:*:*:* | not specified by NVD | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openshift_container_platform:4.11:*:*:*:*:*:*:* | 4.11 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openshift_container_platform:4.12:*:*:*:*:*:*:* | 4.12 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.9:*:*:*:*:*:*:* | 4.9 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.10:*:*:*:*:*:*:* | 4.10 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.9:*:*:*:*:*:*:* | 4.9 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.10:*:*:*:*:*:*:* | 4.10 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openshift_container_platform_for_power:4.9:*:*:*:*:*:*:* | 4.9 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openshift_container_platform_for_power:4.10:*:*:*:*:*:*:* | 4.10 | Vulnerable | Red Hat |
- cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* Versions before 22.0.7 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:single_sign-on:-:*:*:*:text-only:*:*:* Versions not specified by NVD Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openshift_container_platform:4.11:*:*:*:*:*:*:* Versions 4.11 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openshift_container_platform:4.12:*:*:*:*:*:*:* Versions 4.12 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.9:*:*:*:*:*:*:* Versions 4.9 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.10:*:*:*:*:*:*:* Versions 4.10 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.9:*:*:*:*:*:*:* Versions 4.9 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.10:*:*:*:*:*:*:* Versions 4.10 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openshift_container_platform_for_power:4.9:*:*:*:*:*:*:* Versions 4.9 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openshift_container_platform_for_power:4.10:*:*:*:*:*:*:* Versions 4.10 Vulnerable ·Red Hat
Show 6 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Running on | Red Hat |
| cpe:2.3:a:redhat:single_sign-on:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* | 9.0 | Running on | Red Hat |
| cpe:2.3:a:redhat:migration_toolkit_for_applications:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:migration_toolkit_for_applications:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Red Hat
- cpe:2.3:a:redhat:single_sign-on:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Running on ·Red Hat
- cpe:2.3:a:redhat:migration_toolkit_for_applications:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:migration_toolkit_for_applications:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Remediation
- Fix · GHSA-mpwq-j3xf-7m5w org.keycloak:keycloak-services (Maven) Fixed in 23.0.3 Advisory →
Red Hat 12 advisories
- RHSA-2024:0804 Released 2024-02-13 · Red Hat rating ImportantRed Hat Single Sign-On 7.6.7 security update
- Red Hat Single Sign-On 7
- RHSA-2024:0798 Released 2024-02-13 · Red Hat rating ImportantRed Hat Single Sign-On 7.6.7 security update on RHEL 7
- Red Hat Single Sign-On 7.6 for RHEL 7 Server rh-sso7-keycloak-18.0.12-1.redhat_00001.1.el7sso, rh-sso7-keycloak-server-18.0.12-1.redhat_00001.1.el7sso
- RHSA-2024:0800 Released 2024-02-13 · Red Hat rating ImportantRed Hat Single Sign-On 7.6.7 security update on RHEL 9
- Red Hat Single Sign-On 7.6 for RHEL 9 rh-sso7-keycloak-18.0.12-1.redhat_00001.1.el9sso, rh-sso7-keycloak-server-18.0.12-1.redhat_00001.1.el9sso
Show 9 more Red Hat advisories
- RHSA-2024:0799 Released 2024-02-13 · Red Hat rating ImportantRed Hat Single Sign-On 7.6.7 security update on RHEL 8
- Red Hat Single Sign-On 7.6 for RHEL 8 rh-sso7-keycloak-18.0.12-1.redhat_00001.1.el8sso, rh-sso7-keycloak-server-18.0.12-1.redhat_00001.1.el8sso
- RHSA-2024:0801 Released 2024-02-13 · Red Hat rating ImportantRed Hat Single Sign-On 7.6.7 for OpenShift image enhancement update
- Middleware Containers for OpenShift rh-sso-7/sso76-openshift-rhel8
- RHSA-2023:7861 Released 2023-12-14 · Red Hat rating ImportantRed Hat build of Keycloak 22.0.7 images enhancement and security update
- Red Hat build of Keycloak 22 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
- RHSA-2023:7857 Released 2023-12-14 · Red Hat rating ImportantRed Hat Single Sign-On 7.6.6 for OpenShift image enhancement and security update
- Middleware Containers for OpenShift rh-sso-7/sso7-rhel8-operator-bundle, rh-sso-7/sso76-openshift-rhel8
- RHSA-2023:7860 Released 2023-12-14 · Red Hat rating ImportantRed Hat build of Keycloak 22.0.7 enhancement and security update
- Red Hat build of Keycloak 22.0.7
- RHSA-2023:7858 Released 2023-12-14 · Red Hat rating ImportantRed Hat Single Sign-On 7.6.6 security update
- Single Sign-On 7.6.6
- RHSA-2023:7854 Released 2023-12-14 · Red Hat rating ImportantRed Hat Single Sign-On 7.6.6 security update on RHEL 7
- Red Hat Single Sign-On 7.6 for RHEL 7 Server rh-sso7-keycloak-18.0.11-2.redhat_00003.1.el7sso, rh-sso7-keycloak-server-18.0.11-2.redhat_00003.1.el7sso
- RHSA-2023:7856 Released 2023-12-14 · Red Hat rating ImportantRed Hat Single Sign-On 7.6.6 security update on RHEL 8
- Red Hat Single Sign-On 7.6 for RHEL 8 rh-sso7-keycloak-18.0.11-2.redhat_00003.1.el8sso, rh-sso7-keycloak-server-18.0.11-2.redhat_00003.1.el8sso
- RHSA-2023:7855 Released 2023-12-14 · Red Hat rating ImportantRed Hat Single Sign-On 7.6.6 security update on RHEL 9
- Red Hat Single Sign-On 7.6 for RHEL 9 rh-sso7-keycloak-18.0.11-2.redhat_00003.1.el9sso, rh-sso7-keycloak-server-18.0.11-2.redhat_00003.1.el9sso
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Migration Toolkit for Applications 6 | Affected | No fix planned: Will not fix |
| Middleware Containers for OpenShift | Fixed | RHSA-2023:7857, RHSA-2024:0801 |
| Red Hat Single Sign-On 7 | Fixed | RHSA-2024:0804 |
| Red Hat Single Sign-On 7.6 for RHEL 7 Server | Fixed | RHSA-2023:7854, RHSA-2024:0798 |
| Red Hat Single Sign-On 7.6 for RHEL 8 | Fixed | RHSA-2023:7856, RHSA-2024:0799 |
| Red Hat Single Sign-On 7.6 for RHEL 9 | Fixed | RHSA-2023:7855, RHSA-2024:0800 |
| Red Hat build of Keycloak 22 | Fixed | RHSA-2023:7861 |
| Red Hat build of Keycloak 22.0.7 | Fixed | RHSA-2023:7860 |
| Single Sign-On 7.6.6 | Fixed | RHSA-2023:7858 |
Not affected: 8 products
- Migration Toolkit for Applications 7
- OpenShift Serverless
- Red Hat Data Grid 8
- Red Hat Decision Manager 7
- Red Hat Fuse 7
- Red Hat JBoss Data Grid 7
- Red Hat JBoss Enterprise Application Platform 6
- Red Hat Process Automation 7
Timeline
- 2026-10-02 Threatist record created from CVE-2023-6291
- 2026-10-03 Alias added: GHSA-mpwq-j3xf-7m5w
References
Advisory 15
More Red Hat Keycloak vulnerabilities
- TI-2024-01049 Keycloak: path transversal in redirection validation CVSS 3.1HIGH 8.1
- TI-2023-26623 The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6… CVSS 3.1MEDIUM 5.9
- TI-2020-08665 Server-side request forgery in keycloak CVSS 3.1MEDIUM 5.3
- TI-2022-03468 Path traversal in Red Hat Keycloak CVSS 3.1CRITICAL 9.1
- TI-2021-03612 A POST based reflected Cross Site Scripting vulnerability on has been identified in Keycloak. CVSS 3.1MEDIUM 6.1
- TI-2022-03994 Cross-site scripting in keycloak CVSS 3.1CRITICAL 10.0
Sources
- CVE-2023-6291 · CVE Program
- CVE-2023-6291 · NVD
- FIRST EPSS
- GHSA-mpwq-j3xf-7m5w · GitHub Advisory Database · CC BY 4.0
- CVE-2023-6291 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences