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CVE-2015-3227

16
FAUCET Score

CVE-2015-3227 describes a denial-of-service vulnerability in Ruby on Rails Active Support versions prior to 4.1.11 and 4.2.2. Specifically, when JDOM or REXML is enabled, remote attackers can trigger a SystemStackError by submitting a large XML document depth. This vulnerability has a CVSS score of 5.0, indicating a medium severity, with a low attack complexity and potential for denial of service. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
13.1CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
13.2CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.1.0:*:*:*:*:*:*:*
4.1.1CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.1.1:*:*:*:*:*:*:*
4.1.2CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.1.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.26%
Probability of exploitation in next 30 days
EPSS Percentile
90.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0426 is in the 87th percentile among its peer group of 23,725 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

rubygemspatch availablevia ghsa
Product: activesupportFixed in: 4.1.11
rubygemspatch availablevia ghsa
Product: activesupportFixed in: 4.2.2
rubygemspatch availablevia ghsa
Product: activesupportFixed in: 3.2.22
redhatend of lifevia redhat_api
Product: CloudForms Management Engine 5Fixed in: ruby193-rubygem-activesupport
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-ror41-rubygem-activesupport
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: ror40-rubygem-activesupport
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: ruby193-rubygem-activesupport
redhatend of lifevia redhat_api
Product: Red Hat Subscription Asset ManagerFixed in: ruby193-rubygem-activesupport
redhatend of lifevia redhat_api
Product: Red Hat Subscription Asset ManagerFixed in: rubygem-activesupport

Vendor Advisories (2)

rubygemsGHSA-j96r-xvjq-r9pgmedium

activesupport vulnerable to Denial of Service via large XML document depth

Oct 24, 2017
redhatCVE-2015-3227Moderate

rubygem-activesupport: Possible Denial of Service attack in Active Support in merge_element()

Jun 16, 2015

References

lists.opensuse.org / opensuse-updates/2015-07/msg00050.html
openwall.com / lists/oss-security/2015/06/16/16
groups.google.com / forum/message/raw
Vendor Advisory
debian.org / security/2016/dsa-3464
securityfocus.com / bid/75234
securitytracker.com / id/1033755