CVE-2024-41946
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 3.3.3 or later include the patch to fix the vulnerability.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.19% probability · 68th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- ruby-lang/rexml
- Source
- security-advisories@github.com
EPSS 1.2% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/ruby/rexml/commit/033d1909a8f259d5a7c53681bcaf14f13bcf0368Patch
- https://github.com/ruby/rexml/security/advisories/GHSA-5866-49gr-22v4Vendor Advisory
- https://www.ruby-lang.org/en/news/2008/08/23/dos-vulnerability-in-rexmlNot Applicable
- https://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41946Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2025/01/msg00011.html
- https://security.netapp.com/advisory/ntap-20250117-0007/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.