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TI-2021-05763 Aliases CVE-2021-22902GHSA-g8ww-46x2-2p65

Uncontrolled resource consumption in https://github.com/rails/rails

Priority LOW 38CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.

Summary

The actionpack ruby gem (a framework for handling and responding to web requests in Rails) before 6.0.3.7, 6.1.3.2 suffers from a possible denial of service vulnerability in the Mime type parser of Action Dispatch. Carefully crafted Accept headers can cause the mime type parser in Action Dispatch to do catastrophic backtracking in the regular expression engine.

Why it matters now

EPSS 0.02868 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed actionpack (RubyGems): 6.0.3.7, 6.1.3.2Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—https://github.com/rails/railsFixed in 6.0.3.7, 6.1.3.2—No fix listedCNA
—actionpack (RubyGems)6.0.0 to before 6.0.3.76.0.3.7Patch availableGHSA-g8ww-46x2-2p65
—actionpack (RubyGems)6.1.0 to before 6.1.3.26.1.3.2Patch availableGHSA-g8ww-46x2-2p65
  • https://github.com/rails/rails Vendor— Affected Fixed in 6.0.3.7, 6.1.3.2 Fixed in — No fix listed CNA
  • actionpack (RubyGems) Vendor— Affected 6.0.0 to before 6.0.3.7 Fixed in 6.0.3.7 Patch available GHSA-g8ww-46x2-2p65
  • actionpack (RubyGems) Vendor— Affected 6.1.0 to before 6.1.3.2 Fixed in 6.1.3.2 Patch available GHSA-g8ww-46x2-2p65

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*6.0.0 to before 6.0.3.7; 6.1.0 to before 6.1.0.2VulnerableRails
  • cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:* Versions 6.0.0 to before 6.0.3.7; 6.1.0 to before 6.1.0.2 Vulnerable ·Rails

Remediation

  • Fix · GHSA-g8ww-46x2-2p65 actionpack (RubyGems) Fixed in 6.0.3.7 Advisory →
  • Fix · GHSA-g8ww-46x2-2p65 actionpack (RubyGems) Fixed in 6.1.3.2 Advisory →

Red Hat 1 advisory

  • RHSA-2021:4702 Released 2021-11-16 · Red Hat rating Moderate
    Satellite 6.10 Release
    • Red Hat Satellite 6.10 candlepin-4.0.9-1.el7sat, foreman-2.5.2.17-2.el7sat, python-aiohttp-3.7.4-1.el7pc +14
    • Red Hat Satellite Capsule 6.10 foreman-2.5.2.17-2.el7sat, python-aiohttp-3.7.4-1.el7pc, python-ecdsa-0.13.3-2.el7pc +9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Satellite 6.10Fixed RHSA-2021:4702
Not affected: 4 products
  • CloudForms Management Engine 5
  • Red Hat Satellite 6
  • Red Hat Satellite 6.10
  • Red Hat Satellite Capsule 6.10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-22902
  2. 2026-10-03 Alias added: GHSA-g8ww-46x2-2p65

References

Exploit 1

Advisory 2

Other 4

  • 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
See all 117 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences