Vulnerability Details CVE-2026-3872
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 9.3%
CVSS Severity
CVSS v3 Score 7.3
References
Products affected by CVE-2026-3872
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cpe:2.3:a:redhat:build_of_keycloak:-
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cpe:2.3:a:redhat:build_of_keycloak:26.2
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cpe:2.3:a:redhat:build_of_keycloak:26.2.15
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cpe:2.3:a:redhat:build_of_keycloak:26.4
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cpe:2.3:a:redhat:build_of_keycloak:26.4.11