Doorkeeper::OpenidConnect (aka the OpenID Connect extension for Doorkeeper) 1.4.x and…
Priority LOW 30CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-601.
Summary
Doorkeeper::OpenidConnect (aka the OpenID Connect extension for Doorkeeper) 1.4.x and 1.5.x before 1.5.4 has an open redirect via the redirect_uri field in an OAuth authorization request (that results in an error response) with the 'openid' scope and a prompt=none value. This allows phishing attacks against the authorization flow.
Why it matters now
EPSS 0.01349 71st percentileScored 2026-11-07
Fix Fixed doorkeeper-openid_connect (RubyGems): 1.5.4
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-openid_connect (RubyGems) | 1.4.0 to before 1.5.4 | 1.5.4 | Patch available | GHSA-vv4c-g6q7-p3q7 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- doorkeeper-openid_connect (RubyGems) Vendor— Affected 1.4.0 to before 1.5.4 Fixed in 1.5.4 Patch available GHSA-vv4c-g6q7-p3q7
Remediation
- Fix · GHSA-vv4c-g6q7-p3q7 doorkeeper-openid_connect (RubyGems) Fixed in 1.5.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2019-9837
- 2026-10-03 Alias added: GHSA-vv4c-g6q7-p3q7
References
Advisory 3
Sources
- CVE-2019-9837 · CVE Program
- CVE-2019-9837 · NVD
- FIRST EPSS
- GHSA-vv4c-g6q7-p3q7 · GitHub Advisory Database · CC BY 4.0
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