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CVE-2013-1854 activerecord

CVE-2013-1854 is a Improper Input Validation vulnerability in activerecord. A fix is available for activerecord — see the affected versions and patch details below.

Active Record Improper Input Validation

Also known asGHSA-3crr-9vmg-864v
Published
Mar 19, 2013
Updated
Apr 10, 2026
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed
Exploitation data as of Sep 19, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
3.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs88th percentile — riskier than 88% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

3 pkgs affected
💎activerecord💎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

The Active Record component in Ruby on Rails 2.3.x before 2.3.18, 3.1.x before 3.1.12, and 3.2.x before 3.2.13 processes certain queries by converting hash keys to symbols, which allows remote attackers to cause a denial of service via crafted input to a where method.

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
💎RubyGemsactiverecord2.3.0&&< 2.3.182.3.18bundle update activerecord --conservative
💎RubyGemsactiverecord3.1.0&&< 3.1.123.1.12bundle update activerecord --conservative
💎RubyGemsactiverecord3.2.0&&< 3.2.133.2.13bundle update activerecord --conservative

Detection & mitigation playbook

Open-source dependency
  1. 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.

  2. Fix

    Update activerecord to 2.3.18 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-1854 is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2013-1854 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2013-1854. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

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 HatModerate
ProductFixed inAdvisory
Red Hat Subscription Asset Manager 1.4katello-0:1.4.3.28-1.el6sam_spliceRHSA-2014:1863
RHEL 6 Version of OpenShift Enterpriseruby193-rubygem-activerecord-1:3.2.8-6.el6RHSA-2013:0699

Frequently Asked Questions

The Active Record component in Ruby on Rails 2.3.x before 2.3.18, 3.1.x before 3.1.12, and 3.2.x before 3.2.13 processes certain queries by converting hash keys to symbols, which allows remote attackers to cause a denial of service via crafted input to a where method.
O3 Security · Impact-Aware SCA

Is CVE-2013-1854 in your dependencies?

O3 Security finds CVE-2013-1854 across RubyGems dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

CVE-2013-1854: activerecord DoS | O3 Security