CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2006-10003
Critical (9.8) in toddr xml\. EPSS 0.6% chance of exploitation in the next 30 days.
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
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-122, CWE-193
- Published
- Modified
- Record from
- the NVD, synced
Affected
- toddr:xml\
References
- https://github.com/cpan-authors/XML-Parser/commit/3eb9cc95420fa0c3f76947c4708962546bf27cfd.patch
- https://github.com/cpan-authors/XML-Parser/issues/39
- https://rt.cpan.org/Ticket/Display.html?id=19860
- http://www.openwall.com/lists/oss-security/2026/03/19/2
- https://lists.debian.org/debian-lts-announce/2026/04/msg00002.html