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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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.
    (CVE-2026-3872)

ID	Name	Product	Family	Type	Severity
462340	Echo: keycloak-25: security update to 25.0.6+e1org.keycloak:keycloak-services: security update to 26.5.7	Tenable Cloud Security	Echo Local Security Checks	Local	high
462340	Echo: keycloak-25: security update to 25.0.6+e1org.keycloak:keycloak-services: security update to 26.5.7	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
439851	SCA: security update for org.keycloak:keycloak-services (GHSA-cjm2-j6cm-6p6m)	Tenable Cloud Security	SCA Checks	Local	high
439851	SCA: security update for org.keycloak:keycloak-services (GHSA-cjm2-j6cm-6p6m)	Tenable Self-Hosted Container Security	SCA Checks	Local	high

Detections

Analytics

CVE-2026-3872

high

Tenable Plugins

high

high

high

high