CVE-2025-14559— Org.keycloak/keycloak-services: keycloak keycloak-services: business logic flaw allows unauthorized token issuance for disabled users
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I. Basic Information for CVE-2025-14559
Vulnerability Information
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Vulnerability Title
Org.keycloak/keycloak-services: keycloak keycloak-services: business logic flaw allows unauthorized token issuance for disabled users
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in the keycloak-services component of Keycloak. This vulnerability allows the issuance of access and refresh tokens for disabled users, leading to unauthorized use of previously revoked privileges, via a business logic vulnerability in the Token Exchange implementation when a privileged client invokes the token exchange flow.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
业务逻辑错误
Source: NVD (National Vulnerability Database)
Vulnerability Title
Keycloak 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Keycloak是Keycloak开源的一种开源身份和访问管理解决方案。 Keycloak存在安全漏洞，该漏洞源于令牌交换实现存在业务逻辑漏洞，可能导致为已禁用用户颁发访问和刷新令牌，引发未经授权的权限使用。
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)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4.9-1 ~ * | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-11 ~ * | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-10 ~ * | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| Red Hat | Red Hat build of Keycloak 26.4.9 | - | cpe:/a:redhat:build_keycloak:26.4::el9 |
II. Public POCs for CVE-2025-14559
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Red Hat · 2026-01-21 · 4 CVEs total
| CVE-2026-0988 | 3.7 LOW | Glib: glib: denial of service via integer overflow in g_buffered_input_stream_peek() |
| CVE-2026-1035 | 3.1 LOW | Org.keycloak.protocol.oidc: keycloak refresh token reuse bypass via toctou race condition |
| CVE-2025-14083 | 2.7 LOW | Keycloak-server: keycloak: improper access control in admin rest api leads to information |
IV. Related Vulnerabilities
Same product: Red Hat build of Keycloak 26.4
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V. Comments for CVE-2025-14559
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