{"id":"GHSA-w42r-mrx7-c633","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).","aliases":["CVE-2025-3225","PYSEC-2025-250","PYSEC-2026-1570"],"modified":"2026-07-13T07:26:34.494956192Z","published":"2025-07-07T12:30:22Z","database_specific":{"nvd_published_at":"2025-07-07T10:15:27Z","cwe_ids":["CWE-776"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2025-07-07T23:59:01Z"},"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"}],"affected":[{"package":{"name":"llama-index-readers-papers","ecosystem":"PyPI","purl":"pkg:pypi/llama-index-readers-papers"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.3.2"}]}],"versions":["0.0.1","0.1.0","0.1.1","0.1.2","0.1.3","0.1.4","0.1.5","0.1.6","0.2.0","0.3.0","0.3.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-w42r-mrx7-c633/GHSA-w42r-mrx7-c633.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}