What’s Vulnerable › Vulnerabilities

CVE-2006-10002: XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption (double free or corruption) and crashes

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-19 · updated 2026-06-16
• Weakness: CWE-122

Description

XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption (double free or corruption) and crashes. A :utf8 PerlIO layer, parse_stream() in Expat.xs could overflow the XML input buffer because Perl's read() returns decoded characters while SvPV() gives back multi-byte UTF-8 bytes that can exceed the pre-allocated buffer size. This can cause heap corruption (double free or corruption) and crashes.

Affected products

• TODDR Xml::Parser: before 2.48 — fixed in 2.48

How to fix

Upgrade to a fixed version: TODDR Xml::Parser 2.48. Check the vendor advisory for mitigations.

References

• https://github.com/cpan-authors/XML-Parser/commit/56b0509dfc6b559cd7555ea81ee62e3622069255.patch
• https://github.com/cpan-authors/XML-Parser/issues/64
• https://metacpan.org/release/TODDR/XML-Parser-2.46/changes
• https://rt.cpan.org/Ticket/Display.html?id=19859
• http://www.openwall.com/lists/oss-security/2026/03/19/1
• http://www.openwall.com/lists/oss-security/2026/03/22/3

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