CVE-2026-117688— Keycloak-services: keycloak-services: vault secret disclosure via client registration installation configuration

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.

在开源身份与访问管理解决方案 Keycloak 的客户端注册组件中发现了一个安全缺陷。当使用保险库（vault）提供者来存储敏感信息时，已认证的客户端所有者可通过构造特殊的引用，诱使系统泄露机密数据。具体而言，攻击者可将客户端密钥更新为指向保险库中的条目，随后请求客户端配置，从而以明文形式查看该密钥值。此漏洞可能导致本不应被用户访问的敏感凭证遭到泄露。

CVSS 5.3 · Medium Updated Oct 29, 2026

Possible ATT&CK Techniques 2 AI

T1190 · Exploit Public-Facing Application T1552 · Unsecured Credentials

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Vulnerability Information

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Vulnerability Title

Keycloak-services: keycloak-services: vault secret disclosure via client registration installation configuration

Source: CVE Program / CVE List V5

Vulnerability Description

A flaw was found in the client registration component of Keycloak, an open-source identity and access management solution. When a vault provider is used to store sensitive information, an authenticated client owner can use a specially crafted reference to trick the system into revealing secrets. By updating a client secret to point to a vault entry and then requesting the client configuration, the owner can see the secret value in plain text. This could lead to the exposure of sensitive credentials that the user should not be able to access.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

信息暴露

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE
Red Hat	Red Hat Build of Keycloak	-	`cpe:/a:redhat:build_keycloak:`
Red Hat	Red Hat Build of Keycloak	-	`cpe:/a:redhat:build_keycloak:`
Red Hat	Red Hat Single Sign-On 7	-	`cpe:/a:redhat:red_hat_single_sign_on:7`

II. Public POCs for CVE-2026-117688

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-117688

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Other References for CVE-2026-117688 (2)

https://access.redhat.com/security/cve/CVE-2026-117688 vdb-entry x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2561961 issue-tracking x_refsource_REDHAT

https://www.cve.org/CVERecord?id=CVE-2026-117688

Same Patch Batch · Red Hat · 2026-10-29 · 9 CVEs total

CVE-2026-114488	7.4 HIGH	Wildfly: wildfly-iiop: wildfly-ejb3: wildfly: authentication bypass on iiop ejb invocation
CVE-2026-15564	7.4 HIGH	Wildfly-ejb: wildfly-iiop-openjdk: eap iiop listeners may permit unauthed deserialization
CVE-2026-117548	6.5 MEDIUM	389-ds-base: 389-ds-base: null pointer dereference via modifydn using an attribute's schem
CVE-2026-19610	6.5 MEDIUM	Wildfly-platform-mbean: wildfly-platform-mbean: rbac sensitive attribute read bypass for p
CVE-2026-117859	5.4 MEDIUM	Keycloak-services: keycloak-services: par single-use bypass via flow restart
CVE-2026-117627	5.4 MEDIUM	Keycloak-services: keycloak-services: jwt authorization grant bypasses identity provider l
CVE-2026-118030	4.2 MEDIUM	Keycloak-services: keycloak-services: hotp race condition allows single otp code reuse acr
CVE-2026-85498	3.5 LOW	Polkit: regression in cve-2026-4897 fix (polkit read_cookie()) - stack buffer underflow

IV. Related Vulnerabilities

Same product: Red Hat Build of Keycloak

Same vendor: Red Hat

Same weakness: CWE-200