Doorkeeper version 5.0.0 and later contains an information disclosure vulnerability that allows an attacker to retrieve the client secret only intended for the OAuth application owner. After authorizing the application and allowing access, the attacker simply needs to request the list of their authorized applications in a JSON format (usually GET /oauth/authorized_applications.json). An application is vulnerable if the authorized applications controller is enabled.
CVE-2020-10187
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 38% 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).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 78.9%
- KEV
- Not listed
Published
May 4, 2020
Last Modified
November 21, 2024
References (8)
- cve@mitrehttps://github.com/doorkeeper-gem/doorkeeper/commit/25d038022c2fcad45af5b73f9d003cf38ff491f6
- cve@mitrehttps://github.com/doorkeeper-gem/doorkeeper/releases
- cve@mitrehttps://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-j7vx-8mqj-cqp9
- cve@mitrehttps://github.com/rubysec/ruby-advisory-db/pull/446
- af854a3a-2127-422b-91ae-364da2661108https://github.com/doorkeeper-gem/doorkeeper/commit/25d038022c2fcad45af5b73f9d003cf38ff491f6
- af854a3a-2127-422b-91ae-364da2661108https://github.com/doorkeeper-gem/doorkeeper/releases
- af854a3a-2127-422b-91ae-364da2661108https://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-j7vx-8mqj-cqp9
- af854a3a-2127-422b-91ae-364da2661108https://github.com/rubysec/ruby-advisory-db/pull/446
Affected Packages
(1 across 1 ecosystem)
RubyGems(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| doorkeeper | 5.3.0, 5.3.1 | 5.3.2 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 43× 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.
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Related CVEs(same CWE)
Same CWE
10 shownCWE-862
Frequently asked(5)
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