CVE-2026-81888
MEDIUM
NVD
CVSS Score
5.4
Severity
MEDIUM
Published
Aug 31, 2026
Vendor
unknown
Description
@hono/oauth-providers is Authentication middleware for Hono. Prior to version 0.8.6, the built-in social login providers accept an OAuth callback even when the `state` value is absent on both sides, so the anti-CSRF check passes for a callback that never came from a genuine login attempt. This defeats the `state`-based CSRF protection under default usage. Version 0.8.6 has a patch.