Server-side request forgery in keycloak
Priority MEDIUM 61CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-601.
Summary
A flaw was found in Keycloak before 13.0.0, where it is possible to force the server to call out an unverified URL using the OIDC parameter request_uri. This flaw allows an attacker to use this parameter to execute a Server-side request forgery (SSRF) attack.
Why it matters now
EPSS 0.69724 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed org.keycloak:keycloak-core (Maven): 13.0.0Red Hat: 4 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | keycloak | keycloak 13.0.0 | — | No fix listed | CNA |
| — | org.keycloak:keycloak-core (Maven) | before 13.0.0 | 13.0.0 | Patch available | GHSA-jh7q-5mwf-qvhw |
- keycloak Vendor— Affected keycloak 13.0.0 Fixed in — No fix listed CNA
- org.keycloak:keycloak-core (Maven) Vendor— Affected before 13.0.0 Fixed in 13.0.0 Patch available GHSA-jh7q-5mwf-qvhw
Remediation
- Fix · GHSA-jh7q-5mwf-qvhw org.keycloak:keycloak-core (Maven) Fixed in 13.0.0 Advisory →
Red Hat 4 advisories
- RHSA-2021:0327 Released 2021-02-01 · Red Hat rating ImportantRed Hat Single Sign-On 7.4.5 security update
- Red Hat Single Sign-On 7.4.5
- RHSA-2021:0319 Released 2021-02-01 · Red Hat rating ModerateRed Hat Single Sign-On 7.4.5 security update on RHEL 7
- Red Hat Single Sign-On 7.4 for RHEL 7 Server rh-sso7-keycloak-9.0.11-1.redhat_00001.1.el7sso, rh-sso7-keycloak-server-9.0.11-1.redhat_00001.1.el7sso
- RHSA-2021:0320 Released 2021-02-01 · Red Hat rating ModerateRed Hat Single Sign-On 7.4.5 security update on RHEL 8
- Red Hat Single Sign-On 7.4 for RHEL 8 rh-sso7-keycloak-9.0.11-1.redhat_00001.1.el8sso, rh-sso7-keycloak-server-9.0.11-1.redhat_00001.1.el8sso
Show 1 more Red Hat advisories
- RHSA-2021:0318 Released 2021-02-01 · Red Hat rating ModerateRed Hat Single Sign-On 7.4.5 security update on RHEL 6
- Red Hat Single Sign-On 7.4 for RHEL 6 Server rh-sso7-keycloak-9.0.11-1.redhat_00001.1.el6sso, rh-sso7-keycloak-server-9.0.11-1.redhat_00001.1.el6sso
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Single Sign-On 7.4 for RHEL 6 Server | Fixed | RHSA-2021:0318 |
| Red Hat Single Sign-On 7.4 for RHEL 7 Server | Fixed | RHSA-2021:0319 |
| Red Hat Single Sign-On 7.4 for RHEL 8 | Fixed | RHSA-2021:0320 |
| Red Hat Single Sign-On 7.4.5 | Fixed | RHSA-2021:0327 |
Not affected: 5 products
- Red Hat Decision Manager 7
- Red Hat Fuse 7
- Red Hat OpenShift Application Runtimes
- Red Hat Process Automation 7
- Red Hat support for Spring Boot
Timeline
- 2026-10-02 Threatist record created from CVE-2020-10770
- 2026-10-03 Alias added: GHSA-jh7q-5mwf-qvhw
References
Exploit 1
Advisory 2
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-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
- TI-2020-16908 Improper authentication in keycloak CVSS 3.1MEDIUM 6.5
Sources
- CVE-2020-10770 · CVE Program
- CVE-2020-10770 · NVD
- FIRST EPSS
- GHSA-jh7q-5mwf-qvhw · GitHub Advisory Database · CC BY 4.0
- CVE-2020-10770 · 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