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CVE-2026-9705— Keycloak: keycloak: attacker can re-enable and take over disabled clients via registration access token

CVSS 6.5 · Medium EPSS 0.27% · P19

Affected Version Matrix 8

VendorProductVersion RangeStatus
Red HatRed Hat build of Keycloak 26.426.4.13-1< *unaffected
26.4-19< *unaffected
26.4-19< *unaffected
Red HatRed Hat build of Keycloak 26.4.13anyunaffected
Red HatRed Hat build of Keycloak 26.626.6.4-2< *unaffected
26.6-8< *unaffected
26.6-8< *unaffected
Red HatRed Hat build of Keycloak 26.6.4anyunaffected
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I. Basic Information for CVE-2026-9705

Vulnerability Information
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Vulnerability Title
Keycloak: keycloak: attacker can re-enable and take over disabled clients via registration access token
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in Keycloak's client registration service. A remote attacker, possessing a previously issued Registration Access Token (RAT), could exploit this vulnerability to re-enable a client that an administrator had explicitly disabled. This bypasses security controls, allowing the attacker to reset the client's secret and potentially regain privileged API access. The primary impact includes unauthorized information disclosure and potential integrity compromise.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5
Vulnerability Title
Keycloak 会话机制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Keycloak是Keycloak组织开源的一种开源身份和访问管理解决方案。 Keycloak存在会话机制问题漏洞，该漏洞源于客户端注册服务问题，可能导致持有先前已颁发注册访问令牌(RAT)的远程攻击者重新启用管理员已禁用的客户端，绕过安全控制，重置客户端密钥并获得特权API访问权限。
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

VendorProductAffected VersionsCPESubscribe
Red HatRed Hat build of Keycloak 26.4 26.4.13-1 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red HatRed Hat build of Keycloak 26.4 26.4-19 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red HatRed Hat build of Keycloak 26.4 26.4-19 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red HatRed Hat build of Keycloak 26.4.13-cpe:/a:redhat:build_keycloak:26.4::el9
Red HatRed Hat build of Keycloak 26.6 26.6.4-2 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red HatRed Hat build of Keycloak 26.6 26.6-8 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red HatRed Hat build of Keycloak 26.6 26.6-8 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red HatRed Hat build of Keycloak 26.6.4-cpe:/a:redhat:build_keycloak:26.6::el9

II. Public POCs for CVE-2026-9705

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III. Intelligence Information for CVE-2026-9705

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Vendor Advisories for CVE-2026-9705 (1)

Other References for CVE-2026-9705 (5)

Same Patch Batch · Red Hat · 2026-06-25 · 13 CVEs total

CVE-2026-129758.5 HIGHApicurio/apicurio-registry: apicurio-registry: unhardened saxparser in content-type detect
CVE-2026-98008.1 HIGHKeycloak-policy-enforcer: keycloak policy enforcer: authorization bypass via incorrect uri
CVE-2026-118008.1 HIGHOrg.keycloak:keycloak-services: keycloak: authentication bypass via jwt algorithm confusio
CVE-2026-90997.7 HIGHKeycloak: group-admin escalation to realm-admin
CVE-2026-129927.4 HIGHApicurio/apicurio-registry: apicurio-registry: ssrf via wsdl4j import dereference in wsdl
CVE-2026-90867.3 HIGHKeycloak: keycloak: cross-site scripting (xss) via case-insensitive uri validation bypass
CVE-2026-130836.9 MEDIUMPen-drive: pen-drive: stored xss via unescaped cluster data in html report
CVE-2026-129936.5 MEDIUMApicurio/apicurio-registry: apicurio-registry: xml entity-expansion denial of service via
CVE-2026-133186.4 MEDIUMVirt-api-rhel9: kubevirt: kubevirt: ssrf in virt-api port-forward via unvalidated guest-ag
CVE-2026-90834.9 MEDIUMKeycloak: keycloak: information disclosure through arbitrary filesystem path probing
CVE-2026-97994.6 MEDIUMKeycloak: keycloak: unauthorized access to resources via uma permission ticket bypass
CVE-2026-132184.2 MEDIUMKubevirt: kubevirt: symlink following in writetocachedfile allows host file overwrite from

IV. Related Vulnerabilities

Same product: Red Hat build of Keycloak 26.4
Same vendor: Red Hat
Same weakness: CWE-613

V. Comments for CVE-2026-9705

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