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CVE-2016-7954

33
FAUCET Score

CVE-2016-7954 describes a critical vulnerability in Bundler 1.x that allows remote attackers to inject arbitrary Ruby code into an application. This is achieved by exploiting a gem name collision on a secondary source, potentially overlapping with CVE-2013-0334. With a CVSS score of 9.8 (CRITICAL), the vulnerability has a network attack vector, low attack complexity, and can lead to complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, and no public exploit code is available, though it has garnered significant community discussion with 10 mentions.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.0CPE matchmatch criteria
cpe:2.3:a:bundler:bundler:1.0.0:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:bundler:bundler:1.0.0:beta1:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:bundler:bundler:1.0.0:beta10:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:bundler:bundler:1.0.0:beta6:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:bundler:bundler:1.0.0:beta7:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
8.48%
Probability of exploitation in next 30 days
EPSS Percentile
94.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0848 is in the 90th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (12)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: bundlerFixed in: 2.0.0
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)Fixed in: rubygem-bundler
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno)Fixed in: rubygem-bundler
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: rubygem-bundler
redhatend of lifevia redhat_api
Product: Red Hat Satellite 6Fixed in: rubygem-bundler
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-ruby22-rubygem-bundler
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-ruby23-rubygem-bundler
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-ruby24-rubygem-bundler
redhatend of lifevia redhat_api
Product: Red Hat Subscription Asset ManagerFixed in: ruby193-rubygem-bundler
redhatend of lifevia redhat_api
Product: Red Hat Subscription Asset ManagerFixed in: rubygem-bundler
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: rubygem-bundler

Vendor Advisories (2)

rubygemsGHSA-jvgm-pfqv-887xcritical

Bundler allows attacker to inject arbitrary code via secondary Gem source

May 14, 2022
redhatCVE-2016-7954Moderate

rubygem-bundler: Code execution via gem name collision in bundler

Oct 4, 2016

References

collectiveidea.com / blog/archives/2016/10/06/bundlers-multiple-source-security-vulnerability
ExploitThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue Tracking
github.com / bundler/bundler/issues/5051
Issue TrackingPatchThird Party Advisory
github.com / bundler/bundler/issues/5062
Issue TrackingPatchThird Party Advisory
openwall.com / lists/oss-security/2016/10/04/5
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2016/10/04/7
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2016/10/05/3
Mailing ListThird Party Advisory
securityfocus.com / bid/93423
Third Party AdvisoryVDB Entry