# CVE-2026-57111

## Summary

- **CVE ID:** CVE-2026-57111
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
- **CWE:** CWE-1385
- **Published:** Jul 9, 2026
- **Last Modified:** Jul 9, 2026

## Description

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 Products

- Apache Software Foundation — Apache Helix REST (0)

## References

- [CNA](https://lists.apache.org/thread/wy2yv90lvqzx46vkg35xrtfddffq9cfj)
- [CVE](http://www.openwall.com/lists/oss-security/2026/07/08/11)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.35%
- **EPSS Percentile:** 27.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._