How severe is CVE-2014-3514?

No CVSS score has been assigned to CVE-2014-3514 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2014-3514?

CVE-2014-3514 affects the following packages: activerecord (RubyGems), activerecord (RubyGems). Ecosystems affected: RubyGems.

How do I fix CVE-2014-3514?

Update activerecord to 4.0.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2014-3514 is resolved across your whole dependency graph.

How do I detect CVE-2014-3514 in my RubyGems dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for activerecord, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2014-3514 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2014-3514 actively exploited in the wild?

No public exploit code has been indexed for CVE-2014-3514 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2014-3514?

CVE-2014-3514 has an EPSS (Exploit Prediction Scoring System) score of 2.8%, placing it in the 86th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2014-3514?

CVE-2014-3514 is classified as CWE-264 (CWE-264). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2014-3514 published, and has it been updated?

CVE-2014-3514 was published on August 20, 2014 and was last updated on April 10, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

💎 RubyGems

Not in CISA KEV

CVE-2014-3514 — activerecord

CVE-2014-3514 is a CWE-264 vulnerability in activerecord. A fix is available for activerecord — see the affected versions and patch details below.

Active Record subject to strong parameters protection bypass

Also known asGHSA-9rf5-jm6f-2fmm

Published

Aug 20, 2014

Updated

Apr 10, 2026

Affected

2 pkgs

Patched

2 / 2

Exploits

None indexed

Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

2.8%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs86th percentile — riskier than 86% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

2 pkgs affected

💎activerecord💎activerecord

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects RubyGems packages — download data is not available via public APIs for these ecosystems.

Description

activerecord/lib/active_record/relation/query_methods.rb in Active Record in Ruby on Rails 4.0.x before 4.0.9 and 4.1.x before 4.1.5 allows remote attackers to bypass the strong parameters protection mechanism via crafted input to an application that makes create_with calls.

Affected Packages

2 total 2 fixed

Ecosystem	Package	Vulnerable range	Fix
💎RubyGems	`activerecord`	≥ 4.0.0&&< 4.0.9	4.0.9`bundle update activerecord --conservative`
💎RubyGems	`activerecord`	≥ 4.1.0&&< 4.1.5	4.1.5`bundle update activerecord --conservative`

Affected Products

1 product · 28 configurations

Application

railsrubyonrails

14 versions

4.0.04.0.14.0.24.0.34.0.44.0.54.0.64.0.74.0.84.1.04.1.14.1.2

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for activerecord, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update activerecord to 4.0.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2014-3514 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatImportant