XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2006-10003
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-19 12:16:17 UTC
Updated2026-04-04 09:16:18 UTC
DescriptionXML::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

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

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

Problem Types: CWE-122 | CWE-193 | CWE-193 CWE-193 Off-by-one Error | CWE-122 CWE-122 Heap-based Buffer Overflow

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1ADPDECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Toddr Xml \ parser All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA TODDR XMLParser affected 2.47 custom Not specified

References

ReferenceSourceLinkTags
rt.cpan.org/Ticket/Display.html 9b29abf9-4ab0-4765-b253-1875cd9b441e rt.cpan.org Mailing List
github.com/cpan-authors/XML-Parser/issues/39 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com Issue Tracking
github.com/cpan-authors/XML-Parser/commit/3eb9cc95420fa0c3f76947c4708962... 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com Patch
www.openwall.com/lists/oss-security/2026/03/19/2 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Patch, Third Party Advisory
lists.debian.org/debian-lts-announce/2026/04/msg00002.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2006-06-13T00:00:00.000ZIssue logged and patch provided in Request Tracker for XML::Parser
CNA2019-09-23T00:00:00.000ZIssue migrated to github issue tracker
CNA2019-09-24T00:00:00.000ZPatch provided in github issue tracker
CNA2026-03-16T00:00:00.000ZPR created and commit merged to git repo

Solutions

CNA: Apply the patch that has been publicly available since 2006-06-13 or upgrade to version 2.48 or later when it is released.

Workarounds

CNA: Apply the patch that has been publicly available since 2006-06-13.

© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report