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CVE-2026-3872
HIGH7.3
Description
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 Details
CVSS v3.1 Score7.3
SeverityHIGH
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredLOW
User InteractionREQUIRED
Published4/2/2026
Last Modified4/3/2026
Sourcenvd
Honeypot Sightings0
Weaknesses (CWE)
CWE-601
References
https://access.redhat.com/errata/RHSA-2026:6475(secalert@redhat.com)
https://access.redhat.com/errata/RHSA-2026:6476(secalert@redhat.com)
https://access.redhat.com/errata/RHSA-2026:6477(secalert@redhat.com)
https://access.redhat.com/errata/RHSA-2026:6478(secalert@redhat.com)
https://access.redhat.com/security/cve/CVE-2026-3872(secalert@redhat.com)
https://bugzilla.redhat.com/show_bug.cgi?id=2445988(secalert@redhat.com)
IOC Correlations
No correlations recorded
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