CVE-2020-27838
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2020-27838
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in keycloak in versions prior to 13.0.0. The client registration endpoint allows fetching information about PUBLIC clients (like client secret) without authentication which could be an issue if the same PUBLIC client changed to CONFIDENTIAL later. The highest threat from this vulnerability is to data confidentiality.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Red Hat Keycloak 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Keycloak是美国红帽（Red Hat）公司的一套为现代应用和服务提供身份验证和管理功能的软件。 keycloak存在授权问题漏洞，该漏洞源于利用客户端注册API。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | keycloak | keycloak 13.0.0 | - |
II. Public POCs for CVE-2020-27838
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | CVE-2020-27838 - KeyCloak - Information Exposure | https://github.com/Cappricio-Securities/CVE-2020-27838 | POC Details |
| 2 | A flaw was found in keycloak in versions prior to 13.0.0. The client registration endpoint allows fetching information about PUBLIC clients (like client secret) without authentication which could be an issue if the same PUBLIC client changed to CONFIDENTIAL later. The highest threat from this vulnerability is to data confidentiality. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-27838.yaml | POC Details |
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2020-27838
请登录查看更多情报信息。
- https://bugzilla.redhat.com/show_bug.cgi?id=1906797x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2020-27838
Same Patch Batch · n/a · 2021-03-08 · 8 CVEs total
| CVE-2021-23351 | 4.4 MEDIUM | Denial of Service (DoS) |
| CVE-2021-26788 | Oryx Embedded CycloneTCP 输入验证错误漏洞 | |
| CVE-2021-27222 | Time in Status 跨站脚本漏洞 | |
| CVE-2020-23967 | Dr.Web Security Space 数据伪造问题漏洞 | |
| CVE-2020-27574 | Maxum Rumpus 跨站请求伪造漏洞 | |
| CVE-2020-27575 | Maxum Rumpus 命令注入漏洞 | |
| CVE-2020-27576 | Maxum Rumpus 跨站脚本漏洞 |
IV. Related Vulnerabilities
Same product: keycloak
- CVE-2025-12150
Org.keycloak/keycloak-services: webauthn attestation stateme - CVE-2025-13467
Org.keycloak.storage.ldap: keycloak: deserialization of untr - CVE-2025-11538
Keycloak-server: debug default bind address - CVE-2025-12390
Org.keycloak.protocol.oidc.endpoints.logoutendpoint: offline - CVE-2025-10939
Org.keycloak/keycloak-quarkus-server: unable to restrict acc
Same vendor: n/a
- CVE-2026-8276
bettercap MySQL Server mysql_server.go integer coercion - CVE-2026-8275
bettercap zerogod IPP Service zerogod_ipp_primitives.go ippR - CVE-2026-8270
Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
Same weakness: CWE-287
- CVE-2026-8244
Industrial Application Software IAS Canias ERP Login RMI imp - CVE-2026-8216
Industrial Application Software IAS Canias ERP Java RMI Sess - CVE-2026-8214
Industrial Application Software IAS Canias ERP RMI doAction - CVE-2026-42560
auth: Patreon provider assigns the same local user ID to eve - CVE-2026-41070
openvpn-auth-oauth2 returns FUNC_SUCCESS on client-deny, all
V. Comments for CVE-2020-27838
No comments yet