run-llama/llama_index · Security
LlamaIndex has an XML Entity Expansion vulnerability in its sitemap parser
- GHSA ID
- GHSA-w42r-mrx7-c633
- CVE ID
- CVE-2025-3225
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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).
CWEs
- CWE-776 · Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')