CVE Watch15 jul 2026

CVE-2026-9086

A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with `manage-client` permission or access

CVSS

7.3

Alto

EPSS

0.4%

p34

KEV

—

Exploit Today

0-100

Publicado: 25 jun 2026 · Última mod.: 15 jul 2026 · CWE-79

EPSS · 30d

0.4%EPSS · 30 días0.4%

2026-06-302026-07-19

Descripción técnica

A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with `manage-client` permission or access to client registration endpoints, could bypass client Uniform Resource Identifier (URI) validation. This is achieved by registering a malicious client with a specially crafted redirect URI using a case-insensitive `javascript:` or `data:` scheme. This Cross-Site Scripting (XSS) vulnerability allows for arbitrary code execution in the Keycloak origin when a victim clicks the crafted link, such as in the logout flow or the Admin Console.

Referencias oficiales

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