CVE-2026-81888

Published: Ago 31, 2026 Last Modified: Ago 31, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,4
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: none

Description

AI Translation Available

@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.

352

Cross-Site Request Forgery (CSRF)

Stable
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Availability Non-Repudiation Access Control
Potential Impacts:
Gain Privileges Or Assume Identity Bypass Protection Mechanism Read Application Data Modify Application Data Dos: Crash, Exit, Or Restart
Applicable Platforms
Technologies: Web Based, Web Server
View CWE Details
1275

Sensitive Cookie with Improper SameSite Attribute

Incomplete
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Non-Repudiation Access Control
Potential Impacts:
Modify Application Data
Applicable Platforms
Technologies: Web Based, Web Server
View CWE Details
https://github.com/honojs/middleware/commit/b37765f40b7bddb1d8fce39573b085222de…
https://github.com/honojs/middleware/pull/2040
https://github.com/honojs/middleware/releases/tag/%40hono%2Foauth-providers%400…
https://github.com/honojs/middleware/security/advisories/GHSA-fm3f-ch8h-qw8q