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.
CVE-2023-34246
This medium-severity CVE scores 4.2 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 46% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 4.2
- EG Score
- 4.2(medium)
- EPSS
- 49.9%
- KEV
- Not listed
Published
June 12, 2023
Last Modified
December 9, 2024
References (13)
- security-advisories@githubhttps://github.com/doorkeeper-gem/doorkeeper/issues/1589
- security-advisories@githubhttps://github.com/doorkeeper-gem/doorkeeper/pull/1646
- security-advisories@githubhttps://github.com/doorkeeper-gem/doorkeeper/releases/tag/v5.6.6
- security-advisories@githubhttps://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-7w2c-w47h-789w
- security-advisories@githubhttps://lists.debian.org/debian-lts-announce/2023/07/msg00016.html
- security-advisories@githubhttps://www.rfc-editor.org/rfc/rfc8252#section-8.6
- af854a3a-2127-422b-91ae-364da2661108https://github.com/doorkeeper-gem/doorkeeper/issues/1589
- af854a3a-2127-422b-91ae-364da2661108https://github.com/doorkeeper-gem/doorkeeper/pull/1646
- af854a3a-2127-422b-91ae-364da2661108https://github.com/doorkeeper-gem/doorkeeper/releases/tag/v5.6.6
- af854a3a-2127-422b-91ae-364da2661108https://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-7w2c-w47h-789w
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/07/msg00016.html
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/12/msg00010.html
- af854a3a-2127-422b-91ae-364da2661108https://www.rfc-editor.org/rfc/rfc8252#section-8.6
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | ruby-doorkeeper (2.2.1-1ubuntu0.1~esm1) @ xenial | 2026-05-24 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
RubyGems(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| doorkeeper | 0.1.0 ... 5.6.5 (114 versions) | 5.6.6 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 11× in last 7d / 51× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 111 total refreshes for this CVE.
- 2026-07-22 14:06 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2023-34246?
When was CVE-2023-34246 disclosed?
Is CVE-2023-34246 actively exploited?
What is the CVSS score of CVE-2023-34246?
How do I remediate CVE-2023-34246?
Dependency Blast Radius
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