CVE-2016-7954
CVE-2016-7954 is a critical-severity vulnerability in Bundler with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 8% (94th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-94
- Affected product: Bundler
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2016-7954?
- 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.
- How severe is CVE-2016-7954?
- CVE-2016-7954 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2016-7954 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-7954?
- CVE-2016-7954 primarily affects Bundler. In total, 183 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2016-7954?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2016-7954 published?
- CVE-2016-7954 was published on 2016-12-22 and last updated on 2026-06-17.
References
- http://collectiveidea.com/blog/archives/2016/10/06/bundlers-multiple-source-security-vulnerability/
- http://www.openwall.com/lists/oss-security/2016/10/04/5
- http://www.openwall.com/lists/oss-security/2016/10/04/7
- http://www.openwall.com/lists/oss-security/2016/10/05/3
- http://www.securityfocus.com/bid/93423
- https://bugzilla.redhat.com/show_bug.cgi?id=1381951
- https://github.com/bundler/bundler/issues/5051
- https://github.com/bundler/bundler/issues/5062
Affected products (183)
- cpe:2.3:a:bundler:bundler:1.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:beta10:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:beta6:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:beta7:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:beta8:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:beta9:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:rc4:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:rc5:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.0:rc6:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.11:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.12:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.13:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.14:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.15:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.16:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.17:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.18:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.19:rc:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.20:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.20:rc:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.21:*:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.0.21:rc:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.1:pre:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.1:pre1:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.1:pre10:*:*:*:*:*:*
- cpe:2.3:a:bundler:bundler:1.1:pre2:*:*:*:*:*:*
More vulnerabilities in Bundler
- CVE-2020-36327 — High (CVSS 8.8): Bundler 1.16.0 through 2.2.9 and 2.2.11 through 2.2.16 sometimes chooses a dependency source based on the highest gem…
- CVE-2019-3881 — High (CVSS 7.8): Bundler prior to 2.1.0 uses a predictable path in /tmp/, created with insecure permissions as a storage location for…
- CVE-2021-43809 — Medium (CVSS 6.7): `Bundler` is a package for managing application dependencies in Ruby. In `bundler` versions before 2.2.33, when working…
- CVE-2013-0334 — Medium (CVSS 5.0): Bundler before 1.7, when multiple top-level source lines are used, allows remote attackers to install arbitrary gems by…
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