DoS Vulnerability in REXML XML Toolkit for Ruby Affecting Multiple Versions
CVE-2025-58767

1.2LOW

Key Information:

Vendor

Ruby

Status
Rexml
Vendor
CVE Published:
17 September 2025

What is CVE-2025-58767?

The REXML XML toolkit for Ruby, specifically versions 3.3.3 to 3.4.1, contains a Denial of Service vulnerability when parsing XML documents with multiple XML declarations. This issue can result in excessive resource consumption, potentially leading to application crashes or service disruptions when processing untrusted XML inputs. Users are advised to upgrade to REXML version 3.4.2 or later, which includes patches to address this vulnerability effectively.

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Affected Version(s)

rexml >= 3.3.3, < 3.4.2

References

https://github.com/ruby/rexml/security/advisories/GHSA-c2...
x_refsource_CONFIRM
https://github.com/ruby/rexml/commit/5859bdeac792687eaf93...
x_refsource_MISC

CVSS V4

Score:
1.2
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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