REXML DoS vulnerability
### Impact The REXML gem before 3.3.2 has a DoS vulnerability when it parses an XML that has many entity expansions with SAX2 or pull parser API. If you need to parse untrusted XMLs with SAX2 or pull parser API, you may be impacted to this vulnerability. ### Patches The REXML gem 3.3.3 or later include the patch to fix the vulnerability. ### Workarounds Don't parse untrusted XMLs with SAX2 or pull parser API. ### References * https://www.ruby-lang.org/en/news/2008/08/23/dos-vulnerability-in-rexml/ : This is a similar vulnerability * https://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41946/: An announce on www.ruby-lang.org
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2024-41946US | high7.5 | — | ||
REXML is an XML toolkit for Ruby. The REXML gem 3.3.2 has a DoS vulnerability when it parses an XML that has many entity expansions with SAX2 or pull parser API. The REXML gem 3.3.… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/ruby/rexmlPACKAGE
- https://github.com/ruby/rexml/commit/033d1909a8f259d5a7c53681bcaf14f13bcf0368WEB
- https://github.com/ruby/rexml/security/advisories/GHSA-5866-49gr-22v4WEB
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rexml/CVE-2024-41946.ymlWEB
- https://lists.debian.org/debian-lts-announce/2025/01/msg00011.htmlWEB
- https://nvd.nist.gov/vuln/detail/CVE-2024-41946ADVISORY
- https://security.netapp.com/advisory/ntap-20250117-0007WEB
- https://www.ruby-lang.org/en/news/2008/08/23/dos-vulnerability-in-rexmlWEB
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