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TI-2021-12880 Aliases CVE-2021-33473GHSA-fj34-jhjx-xmvv

An argument injection vulnerability in Dragonfly Ruby Gem v1.3.0 allows attackers to read…

Priority MEDIUM 41CWE-88Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-88.

Summary

An argument injection vulnerability in Dragonfly Ruby Gem v1.3.0 allows attackers to read and write arbitrary files when the verify_url option is disabled. This vulnerability is exploited via a crafted URL.

Why it matters now

EPSS 0.01111 66th percentileScored 2026-11-07
Fix Fixed dragonfly (RubyGems): 1.4.0

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—dragonfly (RubyGems)before 1.4.01.4.0Patch availableGHSA-fj34-jhjx-xmvv
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • dragonfly (RubyGems) Vendor— Affected before 1.4.0 Fixed in 1.4.0 Patch available GHSA-fj34-jhjx-xmvv

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:dragonfly_project:dragonfly:1.3.0:*:*:*:*:ruby:*:*1.3.0VulnerableDragonfly Project
  • cpe:2.3:a:dragonfly_project:dragonfly:1.3.0:*:*:*:*:ruby:*:* Versions 1.3.0 Vulnerable ·Dragonfly Project

Remediation

  • Fix · GHSA-fj34-jhjx-xmvv dragonfly (RubyGems) Fixed in 1.4.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-33473
  2. 2026-10-03 Alias added: GHSA-fj34-jhjx-xmvv

References

Patch 1

Advisory 3

Other 3

  • TI-2021-12957 An argument injection vulnerability in the Dragonfly gem before 1.4.0 for Ruby allows… CVSS 3.1CRITICAL 9.8

Sources

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