Medium severity5.4GHSA Advisory· Published Aug 31, 2026· Updated Sep 9, 2026
CVE-2026-81888
CVE-2026-81888
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@hono/oauth-providersnpm | < 0.8.6 | 0.8.6 |
Affected products
1- Range: < 0.8.6
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-fm3f-ch8h-qw8qghsaADVISORY
- github.com/honojs/middleware/commit/b37765f40b7bddb1d8fce39573b085222dea58c1nvdWEB
- github.com/honojs/middleware/pull/2040nvdWEB
- github.com/honojs/middleware/releases/tag/%40hono%2Foauth-providers%400.8.6nvdWEB
- github.com/honojs/middleware/security/advisories/GHSA-fm3f-ch8h-qw8qnvdWEB
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