PT-2026-29728 · Red Hat · Red Hat Build Of Keycloak

Published 2026-04-02 · Updated 2026-04-02 · CVE-2026-3872

NVD

CVSS v3.1

7.3

High

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

A flaw was found in Keycloak. This issue allows an attacker, who controls another path on the same web server, to bypass the allowed path in redirect Uniform Resource Identifiers (URIs) that use a wildcard. A successful attack may lead to the theft of an access token, resulting in information disclosure.

Fix

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

CVE-2026-3872

Affected Products

Red Hat Build Of Keycloak

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-3872 · Security Note
• https://access.redhat.com/security/cve/CVE-2026-3872 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2445988 · Note