VDB
GHSA-h943-hrx6-86cq
GHSA-h943-hrx6-86cq
PUBLISHED
CVSS 9.800000190734863 CRITICAL
XML::Parser versions through 2.47 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.
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Timeline
- Mar 19, 2026 CVE Published
- Mar 23, 2026 CVE Updated
- May 1, 2026 Security Advisory
References
- https://nvd.nist.gov/vuln/detail/CVE-2006-10002 advisory
- https://github.com/cpan-authors/XML-Parser/commit/56b0509dfc6b559cd7555ea81ee62e3622069255.patch url
- https://github.com/cpan-authors/XML-Parser/commit/6b291f4d260fc124a6ec80382b87a918f372bc6b.patch url
- https://github.com/cpan-authors/XML-Parser/issues/64 url
- https://metacpan.org/release/TODDR/XML-Parser-2.46/changes url
- https://rt.cpan.org/Ticket/Display.html?id=19859 url
- http://www.openwall.com/lists/oss-security/2026/03/19/1 url
- http://www.openwall.com/lists/oss-security/2026/03/22/3 url