CVE-2026-81888: CWE-352: Cross-Site Request Forgery (CSRF) in honojs @hono/oauth-providers
@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.
CVE-2026-81888: CWE-352: Cross-Site Request Forgery (CSRF) in honojs @hono/oauth-providers
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.
CVSS v3.1
Score 5.4medium
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-27T17:48:42.123Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a95e616acd9273b498f36f6
Added to database: 08/31/2026, 20:37:42 UTC
Last updated: 09/01/2026, 03:00:28 UTC
Views: 9
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