Out-of-bounds Read Affecting perl-XML-LibXML-debugsource package, versions <1:2.0210-7.amzn2023.0.3


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.65% (52nd percentile)

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  • Snyk IDSNYK-AMZN2023-PERLXMLLIBXMLDEBUGSOURCE-17288547
  • published10 Jun 2026
  • disclosed10 May 2026

Introduced: 10 May 2026

CVE-2026-8177  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 perl-XML-LibXML-debugsource to version 1:2.0210-7.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2026-1795.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl-XML-LibXML-debugsource package and not the perl-XML-LibXML-debugsource package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1