Asymmetric denial of service In ruby3.3
Description
REXML has DoS condition when parsing malformed XML file
Impact
The REXML gems from 3.3.3 to 3.4.1 have a DoS vulnerability when parsing XML containing multiple XML declarations. If you need to parse untrusted XMLs, you may be impacted to these vulnerabilities.
Patches
REXML gems 3.4.2 or later include the patches to fix these vulnerabilities.
Workarounds
Don't parse untrusted XMLs.
References
https://www.ruby-lang.org/en/news/2025/09/18/dos-rexml-cve-2025-58767/ : An announcement on www.ruby-lang.org
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 debian 13 | - | ||
debian 14 | - | ||
 rubygems | 3.4.2 | ||
debian 11 | - | ||
 alpine v3.23 | 3.4.4-r0 | ||
 rpm rhel10 | 0:3.3.10-11.el10_1 | ||
rpm rhel9 | 0:3.3.10-5.module+el9.7.0+23651+15dc1615 | ||
rpm rhel8 | 0:3.3.10-5.module+el8.10.0+23696+c42b0f57 | ||
rpm rhel9.4 | 0:3.3.10-5.module+el9.4.0+23769+ab06e946 | ||
rpm rhel9.6 | 0:3.3.10-5.module+el9.6.0+23780+e40d2335 |
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References