CVE-2006-10003
Published:March 19, 2026
Updated:April 23, 2026
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
Affected Packages
https://github.com/cpan-authors/XML-Parser.git (GITHUB):
Affected version(s) =v2.40_01 <2.51Fix Suggestion:
Update to version 2.51https://github.com/cpan-authors/XML-Parser.git (GITHUB):
Affected version(s) =v2.40_01 <2.49Fix Suggestion:
Update to version 2.49https://github.com/cpan-authors/XML-Parser.git (GITHUB):
Affected version(s) =v2.40_01 <2.48_01Fix Suggestion:
Update to version 2.48_01Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
EPSS
Base Score:
0.03
