CVE-2023-34246

Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape. Prior to version 5.6.6, Doorkeeper automatically processes authorization requests without user consent for public clients that have been previous approved. Public clients are inherently vulnerable to impersonation, their identity cannot be assured. This issue is fixed in version 5.6.6.

• CWE-287
• CWE-287

• https://github.com/doorkeeper-gem/doorkeeper/issues/1589Exploit, Issue Tracking
• https://github.com/doorkeeper-gem/doorkeeper/pull/1646Patch
• https://github.com/doorkeeper-gem/doorkeeper/releases/tag/v5.6.6Release Notes
• https://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-7w2c-w47h-789wVendor Advisory
• https://lists.debian.org/debian-lts-announce/2023/07/msg00016.html
• https://www.rfc-editor.org/rfc/rfc8252#section-8.6Technical Description
• https://github.com/doorkeeper-gem/doorkeeper/issues/1589Exploit, Issue Tracking
• https://github.com/doorkeeper-gem/doorkeeper/pull/1646Patch
• https://github.com/doorkeeper-gem/doorkeeper/releases/tag/v5.6.6Release Notes
• https://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-7w2c-w47h-789wVendor Advisory
• https://lists.debian.org/debian-lts-announce/2023/07/msg00016.html
• https://lists.debian.org/debian-lts-announce/2024/12/msg00010.html
• https://www.rfc-editor.org/rfc/rfc8252#section-8.6Technical Description

Published

Jun 12, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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