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CVE-2013-0156
active_support/core_ext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before…
High7.5EPSS 99.4%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
active_support/core_ext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 does not properly restrict casts of string values, which allows remote attackers to conduct object-injection attacks and execute arbitrary code, or cause a denial of service (memory and CPU consumption) involving nested XML entity references, by leveraging Action Pack support for (1) YAML type conversion or (2) Symbol type conversion.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 99.4% · top 0.1% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- RubyGemsactionpackGHSA-jmgw-6vjg-jjwg (opens in a new tab)
References (14)
- [rubyonrails-security] 20130108 Multiple vulnerabilities in parameter parsing in Action Pack (CVE-2013-0156) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.insinuator.net/2013/01/rails-yaml/ (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2013:0155 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- VU#628463 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- https://community.rapid7.com/community/metasploit/blog/2013/01/09/serialization-mischief-in-ruby-land-cve-2013-0156 (opens in a new tab)x_refsource_MISCx_transferred
- http://www.fujitsu.com/global/support/software/security/products-f/sw-sv-rcve-ror201301e.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- VU#380039 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- APPLE-SA-2013-03-14-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- DSA-2604 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://ics-cert.us-cert.gov/advisories/ICSA-13-036-01A (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2013:0154 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://puppet.com/security/cve/cve-2013-0156 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://weblog.rubyonrails.org/2013/1/28/Rails-3-0-20-and-2-3-16-have-been-released/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2013:0153 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-jmgw-6vjg-jjwg (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2013-0156)Record last updated .