Open redirect in https://github.com/rails/rails
Priority LOW 34CWE-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 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-601.
Summary
A open redirect vulnerability exists in Action Pack >= 6.0.0 that could allow an attacker to craft a "X-Forwarded-Host" headers in combination with certain "allowed host" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website.
Why it matters now
EPSS 0.04421 91st percentileScored 2026-11-07
Fix Fixed actionpack (RubyGems): 6.0.4.2, 6.1.4.2
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 |
|---|---|---|---|---|---|
| — | https://github.com/rails/rails | 6.1.4.2, 6.0.4.2, 7.0.0.rc2 | — | No fix listed | CNA |
| — | actionpack (RubyGems) | 6.0.0 to before 6.0.4.2 | 6.0.4.2 | Patch available | GHSA-qphc-hf5q-v8fc |
| — | actionpack (RubyGems) | 6.1.0 to before 6.1.4.2 | 6.1.4.2 | Patch available | GHSA-qphc-hf5q-v8fc |
- https://github.com/rails/rails Vendor— Affected 6.1.4.2, 6.0.4.2, 7.0.0.rc2 Fixed in — No fix listed CNA
- actionpack (RubyGems) Vendor— Affected 6.0.0 to before 6.0.4.2 Fixed in 6.0.4.2 Patch available GHSA-qphc-hf5q-v8fc
- actionpack (RubyGems) Vendor— Affected 6.1.0 to before 6.1.4.2 Fixed in 6.1.4.2 Patch available GHSA-qphc-hf5q-v8fc
Remediation
- Fix · GHSA-qphc-hf5q-v8fc actionpack (RubyGems) Fixed in 6.0.4.2 Advisory →
- Fix · GHSA-qphc-hf5q-v8fc actionpack (RubyGems) Fixed in 6.1.4.2 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 1 product
- Red Hat Satellite 6
Timeline
- 2026-10-02 Threatist record created from CVE-2021-44528
- 2026-10-03 Alias added: GHSA-qphc-hf5q-v8fc
References
Other 8
- https://security.netapp.com/advisory/ntap-20240208-0003/
- https://github.com/rails/rails/commit/aecba3c301b80e9d5a63c30ea1b287bceaf2c107
- https://github.com/rails/rails
- https://github.com/rails/rails/blob/v6.1.4.2/actionpack/CHANGELOG.md#rails-6142-december-14-2021
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2021-44528.yml
- https://groups.google.com/g/ruby-security-ann/c/vG9gz3nk1pM/m/7-NU4MNrDAAJ
- https://groups.google.com/g/ruby-security-ann/c/vG9gz3nk1pM/m/7-NU4MNrDAAJ?utm_medium=email&utm_source=footer
- https://security.netapp.com/advisory/ntap-20240208-0003
More Rails vulnerabilities
- TI-2014-00124 Directory traversal vulnerability in actionpack/lib/abstract_controller/base.rb in the… KEVCVSS 3.1HIGH 7.5
- TI-2019-03828 Path traversal in Rails https://github.com/rails/rails KEVCVSS 3.1HIGH 7.5
- TI-2016-00672 Directory traversal vulnerability in Action View in Ruby on Rails before 3.2.22.1, 4.0.x… KEVCVSS 3.1HIGH 7.5
- TI-2019-03830 Command injection in Rails https://github.com/rails/rails CVSS 3.1CRITICAL 9.8
- TI-2020-06581 Code injection in https://github.com/rails/rails CVSS 3.1HIGH 8.8
- TI-2013-00091 active_support/core_ext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before… CVSS 2.0HIGH 7.5
Sources
- CVE-2021-44528 · CVE Program
- CVE-2021-44528 · NVD
- FIRST EPSS
- GHSA-qphc-hf5q-v8fc · GitHub Advisory Database · CC BY 4.0
- CVE-2021-44528 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences