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.
History

Mon, 11 May 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Shlomif
Shlomif xml::libxml
Vendors & Products Shlomif
Shlomif xml::libxml

Mon, 11 May 2026 02:30:00 +0000

Type Values Removed Values Added
References

Mon, 11 May 2026 00:00:00 +0000

Type Values Removed Values Added
References

Sun, 10 May 2026 21:15:00 +0000

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Description 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.
Title 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
Weaknesses CWE-125
References

cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published: 2026-05-10T20:48:51.816Z

Updated: 2026-05-11T01:36:04.021Z

Reserved: 2026-05-08T15:36:17.532Z

Link: CVE-2026-8177

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-10T21:16:30.003

Modified: 2026-05-11T02:16:26.750

Link: CVE-2026-8177

cve-icon Redhat

No data.