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CVE-2026-16072— Keycloak-services: keycloak-services: organization invitation link exposure allows unauthorized member creation

Quick assessment

Affected

Red Hat Red Hat build of Keycloak 26.6

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组织开源的一种身份和访问管理解决方案。 keycloak存在安全漏洞，该漏洞源于组织管理组件问题，可能导致具有管理组织权限的委托管理员创建针对不存在电子邮件地址的邀请，并通过应用程序编程接口直接检索秘密注册链接，从而创建新用户账户并将其添加到组织中，绕过安全边界并添加未授权成员。

CVSS 4.9 · Medium EPSS 0.43% · P37 Updated Sep 17, 2026

Possible ATT&CK Techniques 3 AI

T1078 · Valid Accounts T1098.004 · SSH Authorized Keys T1136.001 · Local Account

Affected Version Matrix 9

Vendor	Product	Version Range	Status
Red Hat	Red Hat build of Keycloak 26.6	`26.6.7-3< *`	unaffected
		`26.6-20< *`	unaffected
		`26.6-20< *`	unaffected
Red Hat	Red Hat build of Keycloak 26.6.7	`any`	unaffected
		`any`	unaffected
		`any`	unaffected
Red Hat	Red Hat Data Grid 8	`any`	unaffected
Red Hat	Red Hat JBoss Enterprise Application Platform Expansion Pack	`any`	unaffected
Red Hat	Red Hat Single Sign-On 7	`any`	unaffected

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I. Basic Information for CVE-2026-16072

Vulnerability Information

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Vulnerability Title

Keycloak-services: keycloak-services: organization invitation link exposure allows unauthorized member creation

Source: CVE Program / CVE List V5

Vulnerability Description

A flaw was found in the organization management component of Keycloak. A delegated administrator with permission to manage organizations can create an invitation for a non-existent email address and then retrieve the secret registration link directly through the application programming interface. By using this link, the administrator can create new user accounts and add them to the organization without having the required user management permissions or access to the invited email account. This allows an administrator to bypass security boundaries and add unauthorized members to an organization.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

将系统数据暴露到未授权控制的范围

Source: CVE Program / CVE List V5

Vulnerability Title

Keycloak 安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

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
Red Hat	Red Hat build of Keycloak 26.6	26.6.7-3 ~ *	`cpe:/a:redhat:build_keycloak:26.6::el9`
Red Hat	Red Hat build of Keycloak 26.6	26.6-20 ~ *	`cpe:/a:redhat:build_keycloak:26.6::el9`
Red Hat	Red Hat build of Keycloak 26.6	26.6-20 ~ *	`cpe:/a:redhat:build_keycloak:26.6::el9`
Red Hat	Red Hat build of Keycloak 26.6.7	-	`cpe:/a:redhat:build_keycloak:26.6::el9`
Red Hat	Red Hat build of Keycloak 26.6.7	-	`cpe:/a:redhat:build_keycloak:26.6::el9`
Red Hat	Red Hat build of Keycloak 26.6.7	-	`cpe:/a:redhat:build_keycloak:26.6::el9`
Red Hat	Red Hat Data Grid 8	-	`cpe:/a:redhat:jboss_data_grid:8`
Red Hat	Red Hat JBoss Enterprise Application Platform Expansion Pack	-	`cpe:/a:redhat:jbosseapxp`
Red Hat	Red Hat Single Sign-On 7	-	`cpe:/a:redhat:red_hat_single_sign_on:7`

II. Public POCs for CVE-2026-16072

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-16072

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Vendor Advisories for CVE-2026-16072 (4)

🔗 cve-details vdb-entry x_refsource_REDHAT
🔗 2501721 – (CVE-2026-16072) CVE-2026-16072 keycloak-services: keycloak-services: Organization invitation link exposure allows unauthorized member creation Read full article issue-tracking x_refsource_REDHAT
🔗 RHSA-2026:68277 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:68278 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT

https://www.cve.org/CVERecord?id=CVE-2026-16072

Same Patch Batch · Red Hat · 2026-07-17 · 8 CVEs total

CVE-2026-15943	5.5 MEDIUM	Keycloak-services: keycloak-services: oidc idp update reuses masked client secret after to
CVE-2026-16093	5.4 MEDIUM	Keycloak-services: keycloak-services: required signed-jwt assertion policy can be bypassed
CVE-2026-16089	5.4 MEDIUM	Keycloak-services: keycloak-services: authorization codes can be retargeted to another cli
CVE-2026-16106	4.9 MEDIUM	Keycloak-services: keycloak-services: incorrect authorization in admin role-composite dele
CVE-2026-16104	4.3 MEDIUM	Keycloak-services: keycloak-services: authenticator config endpoint exposes raw recaptcha
CVE-2026-16103	4.3 MEDIUM	Keycloak-services: keycloak-services: incomplete fix for ciba brute-force lockout bypass a
CVE-2026-16108	4.3 MEDIUM	Keycloak-services: keycloak-services: realm default-group reads disclose hidden groups und

IV. Related Vulnerabilities

Same product: Red Hat build of Keycloak 26.6

Same vendor: Red Hat

Same weakness: CWE-497