Improper Input Validation The advisory has been revoked - it doesn't affect any version of package ruby (opens in a new tab)

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6.86% (94^th percentile)

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Snyk IDSNYK-RHEL10-RUBY-16079881
published16 Apr 2026
disclosed22 Feb 2013

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Introduced: 22 Feb 2013

CVE-2013-1821 (opens in a new tab) CWE-20 (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby package and not the ruby package as distributed by RHEL.

lib/rexml/text.rb in the REXML parser in Ruby before 1.9.3-p392 allows remote attackers to cause a denial of service (memory consumption and crash) via crafted text nodes in an XML document, aka an XML Entity Expansion (XEE) attack.