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CVE-2026-9795— Keycloak: keycloak: privilege escalation via improper scope mapping enforcement

Quick assessment

Affected
Red Hat Red Hat build of Keycloak 26.4
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于具有有限客户端管理权限的管理员可利用细粒度管理员权限功能中的漏洞，将任何领域角色分配给客户端的范围映射，绕过预期的安全控制，可能导致注入的角色在用户访问修改后的客户端时投射到用户身份验证令牌中，从而导致未经授权的权限提升。

CVSS 7.3 · High EPSS 0.49% · P40

Affected Version Matrix 8

VendorProduct Version RangeStatus
Red Hat Red Hat build of Keycloak 26.4 26.4.13-1< * unaffected
26.4-19< * unaffected
26.4-19< * unaffected
Red Hat Red Hat build of Keycloak 26.4.13 any unaffected
Red Hat Red Hat build of Keycloak 26.6 26.6.4-2< * unaffected
26.6-8< * unaffected
26.6-8< * unaffected
Red Hat Red Hat build of Keycloak 26.6.4 any unaffected
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I. Basic Information for CVE-2026-9795

Vulnerability Information
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Vulnerability Title
Keycloak: keycloak: privilege escalation via improper scope mapping enforcement
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in Keycloak's Fine-Grained Admin Permissions (FGAPv2) feature. An administrator with limited client management permissions can exploit this vulnerability to assign any realm role, including highly privileged roles, to a client's scope mapping. This bypasses intended security controls, allowing the injected role to be projected into a user's authentication token when they access the modified client. This could lead to unauthorized privilege escalation within the Keycloak realm.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
特权授予不正确
Source: CVE Program / CVE List V5
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，该漏洞源于具有有限客户端管理权限的管理员可利用细粒度管理员权限功能中的漏洞，将任何领域角色分配给客户端的范围映射，绕过预期的安全控制，可能导致注入的角色在用户访问修改后的客户端时投射到用户身份验证令牌中，从而导致未经授权的权限提升。
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 26.4.13-1 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.4 26.4-19 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.4 26.4-19 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.4.13 - cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.6 26.6.4-2 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat build of Keycloak 26.6 26.6-8 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat build of Keycloak 26.6 26.6-8 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat build of Keycloak 26.6.4 - cpe:/a:redhat:build_keycloak:26.6::el9

II. Public POCs for CVE-2026-9795

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III. Intelligence Information for CVE-2026-9795

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Vendor Advisories for CVE-2026-9795 (1)

Other References for CVE-2026-9795 (5)

Same Patch Batch · Red Hat · 2026-05-28 · 14 CVEs total

CVE-2026-4408 9.0 CRITICAL Samba: remote code execution in samr
CVE-2026-9804 7.7 HIGH Kubevirt: kubevirt: vmexport directory symlink escape enables exporter pod file read
CVE-2026-44604 7.0 HIGH Rpm: command injection in rpmuncompress dountar() via unescaped archive top-level director
CVE-2026-9802 6.8 MEDIUM Keycloak: keycloak: unauthorized account access via replayed refresh tokens after cluster
CVE-2026-9792 6.5 MEDIUM Keycloak: keycloak: security restriction bypass allows unauthorized ropc token acquisition
CVE-2026-9796 6.5 MEDIUM Keycloak: keycloak: privilege escalation via time-of-check to time-of-use (toctou) vulnera
CVE-2026-9793 5.9 MEDIUM Keycloak: keycloak: security policy bypass in jwe-encrypted request object processing
CVE-2026-9794 5.3 MEDIUM Keycloak: keycloak: information disclosure via saml ecp endpoint
CVE-2026-9803 5.3 MEDIUM Keycloak: keycloak: denial of service via malformed authorization header
CVE-2026-9801 4.9 MEDIUM Keycloak: keycloak: denial of service via malformed ldap password policy response
CVE-2026-9791 4.3 MEDIUM Keycloak-rhel9: organization data leak after feature disabled in keycloak
CVE-2026-9798 4.3 MEDIUM Keycloak: keycloak: brute-force protection bypass in ciba flow
CVE-2026-10028 4.3 MEDIUM Glib-networking: infinite loop in glib-networking gnutls backend allows remote denial of s

IV. Related Vulnerabilities

Same product: Red Hat build of Keycloak 26.4
Same vendor: Red Hat
Same weakness: CWE-266

V. Comments for CVE-2026-9795

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