CVE-2006-10003

CRITICAL

9.8

Description

XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack. In the case (stackptr == stacksize - 1), the stack will NOT be expanded. Then the new value will be written at location (++stackptr), which equals stacksize and therefore falls just outside the allocated buffer. The bug can be observed when parsing an XML file with very deep element nesting

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/19/2026

Last Modified4/4/2026

Sourcenvd

Honeypot Sightings0

Affected Products

toddr:xml\

Weaknesses (CWE)

CWE-122CWE-193

References

https://github.com/cpan-authors/XML-Parser/commit/3eb9cc95420fa0c3f76947c4708962546bf27cfd.patch(9b29abf9-4ab0-4765-b253-1875cd9b441e)

https://github.com/cpan-authors/XML-Parser/issues/39(9b29abf9-4ab0-4765-b253-1875cd9b441e)

https://rt.cpan.org/Ticket/Display.html?id=19860(9b29abf9-4ab0-4765-b253-1875cd9b441e)

http://www.openwall.com/lists/oss-security/2026/03/19/2(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2026/04/msg00002.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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