The Doorkeeper gem before 4.2.0 for Ruby might allow remote attackers to conduct replay…
Priority MEDIUM 47CWE-254Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub.
Summary
The Doorkeeper gem before 4.2.0 for Ruby might allow remote attackers to conduct replay attacks or revoke arbitrary tokens by leveraging failure to implement the OAuth 2.0 Token Revocation specification.
Why it matters now
EPSS 0.04814 92nd percentileScored 2026-11-07
Fix Fixed doorkeeper (RubyGems): 4.2.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | doorkeeper (RubyGems) | before 4.2.0 | 4.2.0 | Patch available | GHSA-3m6r-39p3-jq25 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- doorkeeper (RubyGems) Vendor— Affected before 4.2.0 Fixed in 4.2.0 Patch available GHSA-3m6r-39p3-jq25
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:doorkeeper_project:doorkeeper:*:*:*:*:*:ruby:*:* | up to 4.1.0 | Vulnerable | Doorkeeper Project |
- cpe:2.3:a:doorkeeper_project:doorkeeper:*:*:*:*:*:ruby:*:* Versions up to 4.1.0 Vulnerable ·Doorkeeper Project
Remediation
- Fix · GHSA-3m6r-39p3-jq25 doorkeeper (RubyGems) Fixed in 4.2.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2016-6582
- 2026-10-03 Alias added: GHSA-3m6r-39p3-jq25
References
Patch 3
Advisory 3
Other 5
- https://github.com/doorkeeper-gem/doorkeeper
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/doorkeeper/CVE-2016-6582.yml
- https://web.archive.org/web/20170214021758/http://www.securityfocus.com/bid/92551
- https://web.archive.org/web/20201207202519/http://www.securityfocus.com/archive/1/539268/100/0/threaded
- http://www.openwall.com/lists/oss-security/2016/08/19/2
More Doorkeeper Project Doorkeeper vulnerabilities
- TI-2023-17082 Doorkeeper Improper Authentication vulnerability CVSS 3.1MEDIUM 6.5
- TI-2020-08208 Doorkeeper version 5.0.0 and later contains an information disclosure vulnerability that… CVSS 3.1HIGH 7.5
- TI-2018-15860 Doorkeeper version 4.2.0 and later contains a Incorrect Access Control vulnerability in… CVSS 3.0HIGH 7.5
- TI-2014-06759 Cross-site request forgery (CSRF) vulnerability in doorkeeper before 1.4.1 allows remote… CVSS 2.0MEDIUM 6.8
- TI-2018-15743 Doorkeeper version 2.1.0 through 4.2.5 contains a Cross Site Scripting (XSS)… CVSS 3.0MEDIUM 6.1
Sources
- CVE-2016-6582 · CVE Program
- CVE-2016-6582 · NVD
- FIRST EPSS
- GHSA-3m6r-39p3-jq25 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences