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CVE-2016-7954 — Vulnerability in bundler — CVE Details

CRITICAL

Bundler allows attacker to inject arbitrary code via secondary Gem source

Published May 14, 2022Updated April 14, 2025Source: osv

Summary

Bundler 1.x might allow remote attackers to inject arbitrary Ruby code into an application by leveraging a gem name collision on a secondary source. NOTE: this might overlap CVE-2013-0334.

Advisory Timeline

  • First published May 14, 2022 (1612 days ago).
  • Last revised April 14, 2025 — 1067 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler
Update bundler to 2.0.0 or later
gem install bundler -v 2.0.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: rubygems (1).

PackageEcosystemAffectedFixed In
bundler
rubygems
1.0.0, 1.0.10, 1.0.11, 1.0.12 (+208 more)2.0.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2016-7954?
Bundler allows attacker to inject arbitrary code via secondary Gem source This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2016-7954?
CVE-2016-7954 affects bundler. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2016-7954 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-jvgm-pfqv-887x

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