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Medium ALAS2-2026-3342 1 CVE

Moderate: perl-XML-LibXML security update (Amazon Linux 2)

Published Jun 8, 2026 · Updated Jun 8, 2026

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-8177: 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.

Fixed packages 2

ReleasePackageFixed in
Amazon Linux · 2 perl-XML-LibXML 1:2.0018-5.amzn2.0.3
Amazon Linux · 2 perl-XML-LibXML-debuginfo 1:2.0018-5.amzn2.0.3

Vulnerabilities 1

  • High 7.5

    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

    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 in…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-8177.html