CVE-2026-81888

Summary

@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.

Affected Software

VendorProductVersion RangeStatus
honojs@hono/oauth-providers< 0.8.6affected

Weaknesses

  • CWE-352: CWE-352: Cross-Site Request Forgery (CSRF)
  • CWE-1275: CWE-1275: Sensitive Cookie with Improper SameSite Attribute

References