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CVE PROGRAM SOURCE RECORD7.3 High

CVE-2026-3872

Keycloak: keycloak: information disclosure due to redirect_uri validation bypass

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Status
Published
Published
Updated
Assigning organization
redhat

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat build of Keycloak 26.2

Default version status: affected

  • 26.2.15-1 to < *unaffected

Red Hat Red Hat build of Keycloak 26.2

Default version status: affected

  • 26.2-18 to < *unaffected

Red Hat Red Hat build of Keycloak 26.2

Default version status: affected

  • 26.2-18 to < *unaffected

Red Hat Red Hat build of Keycloak 26.2.15

Default version status: unaffected

Red Hat Red Hat build of Keycloak 26.4

Default version status: affected

  • 26.4.11-1 to < *unaffected

Red Hat Red Hat build of Keycloak 26.4

Default version status: affected

  • 26.4-14 to < *unaffected

Red Hat Red Hat build of Keycloak 26.4

Default version status: affected

  • 26.4-14 to < *unaffected

Red Hat Red Hat build of Keycloak 26.4.11

Default version status: unaffected

References