CVE-2023-34246 — Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape
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, thei
Published
2023-06-12T16:33:05.704Z
Last modified
2025-02-13T16:55:25.344Z
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
01What is this vulnerability?
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.
02Affected products
| Vendor | Product | Versions |
|---|
| doorkeeper-gem | doorkeeper | < 5.6.6 |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2023-06-12T16:33:05.704Z
- Last modified: 2025-02-13T16:55:25.344Z
09References
- github.com — https://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-7w2c-w47h-…
- github.com — https://github.com/doorkeeper-gem/doorkeeper/issues/1589
- github.com — https://github.com/doorkeeper-gem/doorkeeper/pull/1646
- github.com — https://github.com/doorkeeper-gem/doorkeeper/releases/tag/v5.6.6
- www.rfc-editor.org — https://www.rfc-editor.org/rfc/rfc8252#section-8.6
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2023/07/msg00016.html
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