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CVE-2026-81888 Details

UNDERGOING ENRICHMENT

The CVE is currently being enriched by the Volerion team. The enrichment process results in the association of reference link tags, CVSS, and CPE applicability statement data.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:…Vector:This vulnerability is currently being analyzed.

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/honojs/middleware/commit/b37765f40b7bddb1d8fce39573b085222dea58c1	[email protected]
https://github.com/honojs/middleware/pull/2040	[email protected]
https://github.com/honojs/middleware/releases/tag/%40hono%2Foauth-providers%400.8.6	[email protected]
https://github.com/honojs/middleware/security/advisories/GHSA-fm3f-ch8h-qw8q	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-1275	Sensitive Cookie with Improper SameSite Attribute	[email protected]
CWE-352	Cross-Site Request Forgery (CSRF)	[email protected]

Affected Products

This vulnerability is currently being analyzed

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 1, 2026	CVE Modified	CISA-ADP
Aug 31, 2026	New CVE Received	[email protected]