CVE-2026-19688— Keycloak-services: keycloak-services: admin api missing audience check

Quick assessment

Affected

Red Hat Red Hat build of Keycloak 26.6.8

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.

在身份与访问管理解决方案 Keycloak 的管理 REST API 中发现了一个漏洞。该管理 API 在身份验证过程中未能正确验证承载令牌（bearer token）的预期受众（audience）。此漏洞允许在某个域（realm）中运行客户端的攻击者截获管理员的访问令牌，并复用该令牌执行未授权的管理操作，进而可能导致整个域被完全攻破。

CVSS 6.8 · Medium Updated Nov 06, 2026

Possible ATT&CK Techniques 2 AI

T1078 · Valid Accounts T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

Keycloak-services: keycloak-services: admin api missing audience check

Source: CVE Program / CVE List V5

Vulnerability Description

A flaw was found in the Admin REST API of Keycloak, an identity and access management solution. The Admin API fails to verify the intended audience of bearer tokens during authentication. This issue allows an attacker who operates a client within a realm to capture an administrator's access token and reuse it to perform unauthorized administrative actions, potentially leading to full realm compromise.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

认证机制不恰当

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE
Red Hat	Red Hat build of Keycloak 26.6.8	-	`cpe:/a:redhat:build_keycloak:26.6::el9`
Red Hat	Red Hat build of Keycloak 26.6.8	-	`cpe:/a:redhat:build_keycloak:26.6::el9`
Red Hat	Red Hat Single Sign-On 7	-	`cpe:/a:redhat:red_hat_single_sign_on:7`

II. Public POCs for CVE-2026-19688

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-19688

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Other References for CVE-2026-19688 (3)

https://access.redhat.com/security/cve/CVE-2026-19688 vdb-entry x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2514534 issue-tracking x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95761 vendor-advisory x_refsource_REDHAT

https://www.cve.org/CVERecord?id=CVE-2026-19688

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-2026-123037	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-2026-9797	6.5 MEDIUM	Keycloak: keycloak: privilege escalation via client authentication manipulation by an auth
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 26.6.8

Same vendor: Red Hat

Same weakness: CWE-287