CVE-2026-9797— Keycloak: keycloak: privilege escalation via client authentication manipulation by an authenticated administrator

Quick assessment

Affected

Red Hat Red Hat Build of Keycloak

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.

在 Keycloak 的管理服务（org.keycloak.services.resources.admin）中发现了一个漏洞。拥有高权限且已使用"manage-clients"角色进行身份验证的攻击者，可通过多种手段利用该漏洞，包括：篡改客户端的 JSON Web 密钥集（JWKS）、替换客户端认证器类型、重置密钥，或下载合法的签名密钥。成功利用后，攻击者可获取具有"realm-admin"角色分配的令牌，从而导致权限提升，并可能非法访问敏感资源。

CVSS 6.5 · Medium Updated Nov 06, 2026

Possible ATT&CK Techniques 3 AI

T1190 · Exploit Public-Facing Application T1552.001 · Credentials In Files T1068 · Exploitation for Privilege Escalation

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Vulnerability Information

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Vulnerability Title

Keycloak: keycloak: privilege escalation via client authentication manipulation by an authenticated administrator

Source: CVE Program / CVE List V5

Vulnerability Description

A flaw was found in Keycloak's administrative services (org.keycloak.services.resources.admin). A highly privileged attacker, authenticated with a 'manage-clients' role, could exploit this vulnerability through several methods, including manipulating client JSON Web Key Sets (JWKS), swapping client authenticator types and resetting secrets, or downloading legitimate signing keys. Successful exploitation allows the attacker to obtain a token with 'realm-admin' role assignments, leading to privilege escalation and potential unauthorized access to sensitive resources.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/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

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Red Hat	Red Hat Build of Keycloak	-	`cpe:/a:redhat:build_keycloak:`

II. Public POCs for CVE-2026-9797

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-9797

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Other References for CVE-2026-9797 (2)

https://access.redhat.com/security/cve/CVE-2026-9797 vdb-entry x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2482468 issue-tracking x_refsource_REDHAT

https://www.cve.org/CVERecord?id=CVE-2026-9797

Same Patch Batch · Red Hat · 2026-11-06 · 15 CVEs total

CVE-2026-109081	6.8 MEDIUM	Keycloak-services: keycloak-services: injection of roles into realm default-roles via dcr
CVE-2026-19688	6.8 MEDIUM	Keycloak-services: keycloak-services: admin api missing audience check
CVE-2026-123037	6.7 MEDIUM	Ansible-core: user module generate_ssh_key follows a symlinked ~/.ssh enabling local privi
CVE-2026-96547	6.5 MEDIUM	Keycloak-services: keycloak-services: dcr registration-time claim-path gap allows forging
CVE-2026-97848	6.5 MEDIUM	Keycloak-services: keycloak-services: protocol mapper with jsontype=json bypasses token sa
CVE-2026-107124	6.4 MEDIUM	Keycloak-services: keycloak-services: oidc logout endpoint session fixation via id_token_h
CVE-2026-97367	6.4 MEDIUM	Keycloak-services: keycloak-services: dcr azp and sid claim substitution allows account re
CVE-2026-120749	6.2 MEDIUM	Dbus: dbus-daemon: dbus-daemon aborts (reply_serial != 0) when a broadcast from the driver
CVE-2026-96460	5.4 MEDIUM	Keycloak-services: keycloak-services: indefinite access token renewal via standard token e
CVE-2026-92856	4.9 MEDIUM	Keycloak-services: keycloak-services: saml broker ignores proxyrestriction delegation cons
CVE-2026-121837	4.3 MEDIUM	Quarkus-rest-data-panache: quarkus-rest-data-panache: getter-level @securefield ignored fo
CVE-2026-96447	4.2 MEDIUM	Keycloak-services: keycloak-services: stateless token preferred_username fallback enables
CVE-2026-83493		Distributed-workloads: github actions pinned by mutable tag/branch, including third-party
CVE-2026-83494		Training-operator: pytorchjob validateupdate casts oldjob from newobj, bypassing managedby

IV. Related Vulnerabilities

Same product: Red Hat Build of Keycloak

Same vendor: Red Hat

Same weakness: CWE-266