CVE-2026-57111: Permissive Cross-Origin Resource Sharing (CORS) in the REST API (helix-rest, org.apache.helix.rest.server.filters.CORSFilter) in Apache Helix through 2.0.0 on…

PriorityP350high7.5CVSS 3.1

AVNACLPRNUINSUCHINAN

EPSS

0.35%

27.7th percentile

Permissive Cross-Origin Resource Sharing (CORS) in the REST API (helix-rest, org.apache.helix.rest.server.filters.CORSFilter) in Apache Helix through 2.0.0 on all platforms allows a remote attacker controlling a web page visited by an authorized user to read responses from and issue cross-origin requests to administrative REST endpoints via a cross-origin request from an arbitrary origin, since the filter unconditionally returns Access-Control-Allow-Origin: * together with Access-Control-Allow-Credentials: true and reflects arbitrary Access-Control-Request-Method / Access-Control-Request-Headers values in preflight responses. Users are recommended to upgrade to version 2.0.1, which fixes this issue.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
apache	helix	< 2.0.1	2.0.1
apache_software_foundation	apache_helix_rest	<= 2.0.0	—

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