GHSA-W42R-MRX7-C633

Vulnerability from github – Published: 2025-07-07 12:30 – Updated: 2025-07-07 23:59
VLAI?
Summary
LlamaIndex has an XML Entity Expansion vulnerability in its sitemap parser
Details

An XML Entity Expansion vulnerability, also known as a 'billion laughs' attack, exists in the sitemap parser of the run-llama/llama_index repository, specifically affecting the Papers Loaders package before version 0.3.2 (in llama-index v0.10.0 and above through v0.12.29). This vulnerability allows an attacker to supply a malicious Sitemap XML, leading to a Denial of Service (DoS) by exhausting system memory and potentially causing a system crash. The issue is resolved in version 0.3.2 (in llama-index 0.12.29).

Severity ?
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "llama-index-readers-papers"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-3225"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-776"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-07-07T23:59:01Z",
    "nvd_published_at": "2025-07-07T10:15:27Z",
    "severity": "HIGH"
  },
  "details": "An XML Entity Expansion vulnerability, also known as a \u0027billion laughs\u0027 attack, exists in the sitemap parser of the run-llama/llama_index repository, specifically affecting the Papers Loaders package before version 0.3.2 (in llama-index v0.10.0 and above through v0.12.29). This vulnerability allows an attacker to supply a malicious Sitemap XML, leading to a Denial of Service (DoS) by exhausting system memory and potentially causing a system crash. The issue is resolved in version 0.3.2 (in llama-index 0.12.29).",
  "id": "GHSA-w42r-mrx7-c633",
  "modified": "2025-07-07T23:59:01Z",
  "published": "2025-07-07T12:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3225"
    },
    {
      "type": "WEB",
      "url": "https://github.com/run-llama/llama_index/commit/4f6ee062b19212106a2632af9c9521fc7f0a3584"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/run-llama/llama_index"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/e33c0699-e9a2-49aa-837b-5363205637a2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "LlamaIndex has an XML Entity Expansion vulnerability in its sitemap parser"
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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