rubygem-activesupport: Possible Denial of Service attack in Active Support in merge_element()
Published Jul 26, 2015
5.0
MEDIUMCVSS 2.0
EPSS 4.26%
Description
The (1) jdom.rb and (2) rexml.rb components in Active Support in Ruby on Rails before 4.1.11 and 4.2.x before 4.2.2, when JDOM or REXML is enabled, allow remote attackers to cause a denial of service (SystemStackError) via a large XML document depth.
Affected products
No data.
Configuration 2
- 4.1.0
- 4.1.1
- 4.1.2
- 4.1.3
- 4.1.4
- 4.1.5
- 4.1.6
- 4.1.7
- 4.1.8
- 4.2.0
- 4.2.1
No data.
CloudForms Management Engine 5
ruby193-rubygem-activesupport
Will not fix
Red Hat Software Collections
rh-ror41-rubygem-activesupport
Will not fix
Red Hat Software Collections
ror40-rubygem-activesupport
Will not fix
Red Hat Software Collections
ruby193-rubygem-activesupport
Will not fix
Red Hat Subscription Asset Manager
ruby193-rubygem-activesupport
Will not fix
Red Hat Subscription Asset Manager
rubygem-activesupport
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| CloudForms Management Engine 5 | ruby193-rubygem-activesupport | Will not fix | n/a |
| Red Hat Software Collections | rh-ror41-rubygem-activesupport | Will not fix | n/a |
| Red Hat Software Collections | ror40-rubygem-activesupport | Will not fix | n/a |
| Red Hat Software Collections | ruby193-rubygem-activesupport | Will not fix | n/a |
| Red Hat Subscription Asset Manager | ruby193-rubygem-activesupport | Will not fix | n/a |
| Red Hat Subscription Asset Manager | rubygem-activesupport | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 4.26% (0.04261) | 90.77th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.26% (0.04261) | 89.75th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.84% (0.01835) | 81.32th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.18% (0.04185) | 80.84th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.18% (0.01175) | 77.24th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.57% (0.01568) | 87.76th | v3 (v2023.03.01) |
| May 9, 2024 | 1.57% (0.01568) | 87.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.57% (0.01568) | 85.18th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (16)
- http://lists.opensuse.org/opensuse-updates/2015-07/msg00050.html vendor-advisoryx_refsource_SUSE
- http://openwall.com/lists/oss-security/2015/06/16/16 mailing-listx_refsource_MLIST
- http://www.debian.org/security/2016/dsa-3464 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/75234 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1033755 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2015-3227 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1232302 Issue Tracking
- https://github.com/advisories/GHSA-j96r-xvjq-r9pg Advisory
- https://github.com/rails/rails/commit/12f763ce1131d29d24bd0d8f868e2697a139aea3
- https://github.com/rails/rails/commit/153cc843ad95930b00b0ca91d30b599b7dec9680
- https://github.com/rails/rails/commit/78b29e08c700d889837af6c51c7debd3864abc3d
- https://groups.google.com/forum/message/raw?msg=rubyonrails-security/bahr2JLnxvk/x4EocXnHPp8J mailing-listx_refsource_MLISTVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-3227
- https://web.archive.org/web/20200228041703/http://www.securityfocus.com/bid/75234
- https://web.archive.org/web/20200517005133/http://www.securitytracker.com/id/1033755
- https://www.cve.org/CVERecord?id=CVE-2015-3227
Change history (0)
No recorded changes yet.