XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack (TODDR XML::Parser)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.56 % · percentile 46 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- CPANSec
- NVD status
- Modified
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
Weaknesses (CWE)
References
- https://rt.cpan.org/Ticket/Display.html?id=19860
- https://github.com/cpan-authors/XML-Parser/issues/39
- https://github.com/cpan-authors/XML-Parser/commit/3eb9cc95420fa0c3f76947c4708962546bf27cfd.patch
- http://www.openwall.com/lists/oss-security/2026/03/19/2
- https://lists.debian.org/debian-lts-announce/2026/04/msg00002.html
- https://access.redhat.com/security/cve/CVE-2006-10003
- https://bugzilla.redhat.com/show_bug.cgi?id=2448999
- https://security.access.redhat.com/data/csaf/v2/vex/2006/cve-2006-10003.json
- https://access.redhat.com/errata/RHSA-2026:8578
- https://access.redhat.com/errata/RHSA-2026:9110
- https://access.redhat.com/errata/RHSA-2026:7680
- https://access.redhat.com/errata/RHSA-2026:7681
- https://access.redhat.com/errata/RHSA-2026:8609
- https://access.redhat.com/errata/RHSA-2026:8608
- https://access.redhat.com/errata/RHSA-2026:8610
- https://access.redhat.com/errata/RHSA-2026:8577
- https://access.redhat.com/errata/RHSA-2026:9246
- https://access.redhat.com/errata/RHSA-2026:9258
- https://access.redhat.com/errata/RHSA-2026:9259
- https://access.redhat.com/errata/RHSA-2026:9605
- https://access.redhat.com/errata/RHSA-2026:7679
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | redhat-SADP |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
European references
- ENISA EUVD · EUVD-2006-7234
- GCVE · GCVE-0-2006-10003
CERT-FR advisories
- CERTFR-2026-AVI-0667 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:toddr:xml\:\:parser:*:*:*:*:*:perl:*:*< 2.48
Affected products
| Product | Versions |
|---|---|
| TODDR · XML::Parser | affected 0 ≤ 2.47 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |