Amazon Linux 2 Security Advisory: ALAS2-2026-3342
Advisory Released Date: 2026-06-08
Advisory Updated Date: 2026-06-08
XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences.
A node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory.
Any Perl process that passes attacker controlled strings to XML::LibXML's DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service. (CVE-2026-8177)
Affected Packages:
perl-XML-LibXML
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update perl-XML-LibXML or yum update --advisory ALAS2-2026-3342 to update your system.
aarch64:
perl-XML-LibXML-2.0018-5.amzn2.0.3.aarch64
perl-XML-LibXML-debuginfo-2.0018-5.amzn2.0.3.aarch64
i686:
perl-XML-LibXML-2.0018-5.amzn2.0.3.i686
perl-XML-LibXML-debuginfo-2.0018-5.amzn2.0.3.i686
src:
perl-XML-LibXML-2.0018-5.amzn2.0.3.src
x86_64:
perl-XML-LibXML-2.0018-5.amzn2.0.3.x86_64
perl-XML-LibXML-debuginfo-2.0018-5.amzn2.0.3.x86_64