BREW-UFFIZZI-CVE-2013-1856 (GHSA-9C2J-593Q-3G82)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:46 – Updated: 2026-08-13 17:46 – Source websiteThe ActiveSupport::XmlMini_JDOM backend in lib/active_support/xml_mini/jdom.rb in the Active Support component in Ruby on Rails 3.0.x and 3.1.x before 3.1.12 and 3.2.x before 3.2.13, when JRuby is used, does not properly restrict the capabilities of the XML parser, which allows remote attackers to read arbitrary files or cause a denial of service (resource consumption) via vectors involving (1) an external DTD or (2) an external entity declaration in conjunction with an entity reference.
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "activesupport",
"resource_purl": "pkg:gem/activesupport@8.0.2",
"upstream_fixed_in": "3.2.13"
},
"package": {
"ecosystem": "Homebrew",
"name": "uffizzi",
"purl": "pkg:brew/uffizzi"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.21"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "RubyGems",
"key": "pkg:gem/activesupport@8.0.2",
"name": "activesupport",
"resource": "activesupport",
"strategy": "registry",
"subject_version": "8.0.2"
}
]
},
"details": "The `ActiveSupport::XmlMini_JDOM` backend in `lib/active_support/xml_mini/jdom.rb` in the Active Support component in Ruby on Rails 3.0.x and 3.1.x before 3.1.12 and 3.2.x before 3.2.13, when JRuby is used, does not properly restrict the capabilities of the XML parser, which allows remote attackers to read arbitrary files or cause a denial of service (resource consumption) via vectors involving (1) an external DTD or (2) an external entity declaration in conjunction with an entity reference.",
"id": "BREW-uffizzi-CVE-2013-1856",
"modified": "2026-08-13T17:46:08Z",
"published": "2026-08-13T17:46:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-1856"
},
{
"type": "PACKAGE",
"url": "https://github.com/rails/rails"
},
{
"type": "WEB",
"url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2013-1856.yml"
},
{
"type": "WEB",
"url": "https://groups.google.com/group/rubyonrails-security/msg/6c2482d4ed1545e6?dmode=source\u0026output=gplain"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20130609174600/http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20131109010518/http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html"
},
{
"type": "WEB",
"url": "http://support.apple.com/kb/HT5784"
},
{
"type": "WEB",
"url": "http://weblog.rubyonrails.org/2013/3/18/SEC-ANN-Rails-3-2-13-3-1-12-and-2-3-18-have-been-released"
}
],
"schema_version": "1.7.3",
"summary": "activesupport Improper Input Validation vulnerability",
"upstream": [
"GHSA-9c2j-593q-3g82",
"CVE-2013-1856"
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.