GHSA-X2WR-F89P-CQWH

Vulnerability from github – Published: 2026-03-19 12:30 – Updated: 2026-06-30 03:35
VLAI
Details

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
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2006-10003"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122",
      "CWE-193"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-19T12:16:17Z",
    "severity": "CRITICAL"
  },
  "details": "XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack.\n\nIn 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.\n\nThe bug can be observed when parsing an XML file with very deep element nesting",
  "id": "GHSA-x2wr-f89p-cqwh",
  "modified": "2026-06-30T03:35:56Z",
  "published": "2026-03-19T12:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2006-10003"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cpan-authors/XML-Parser/issues/39"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cpan-authors/XML-Parser/commit/3eb9cc95420fa0c3f76947c4708962546bf27cfd.patch"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2006/cve-2006-10003.json"
    },
    {
      "type": "WEB",
      "url": "https://rt.cpan.org/Ticket/Display.html?id=19860"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00002.html"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448999"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2006-10003"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:9605"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:9259"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:9258"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:9246"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:9110"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8610"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8609"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8608"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8578"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8577"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7681"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7680"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7679"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/03/19/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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