{"cve":"CVE-2025-3225","nvd":{"published":"2025-07-07T10:15:27.047","modified":"2026-06-17T09:19:28.120","status":"Analyzed","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 version v0.12.21. 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 v0.12.29.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-776"],"references":["https://github.com/run-llama/llama_index/commit/4f6ee062b19212106a2632af9c9521fc7f0a3584","https://huntr.com/bounties/e33c0699-e9a2-49aa-837b-5363205637a2"],"products":["llamaindex:llamaindex"],"source":"nvd","synced_at":"2026-10-19T22:04:28.436527499+00:00"},"epss":{"cve":"CVE-2025-3225","score":0.00478,"percentile":0.41256,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-w42r-mrx7-c633","url":"https://osv.dev/vulnerability/GHSA-w42r-mrx7-c633","summary":"LlamaIndex has an XML Entity Expansion vulnerability in its sitemap parser","modified":"2026-07-13T07:26:34.494956192Z","packages":[{"ecosystem":"PyPI","name":"llama-index-readers-papers","purl":"pkg:pypi/llama-index-readers-papers","ranges":["<0.3.2"],"fixed":["0.3.2"]}]},{"id":"PYSEC-2025-250","url":"https://osv.dev/vulnerability/PYSEC-2025-250","summary":"","modified":"2026-07-13T07:26:34.494956192Z","packages":[{"ecosystem":"PyPI","name":"llama-index","purl":"pkg:pypi/llama-index","ranges":[">=0.12.21 <0.12.29"],"fixed":["0.12.29"]}]},{"id":"PYSEC-2026-1570","url":"https://osv.dev/vulnerability/PYSEC-2026-1570","summary":"LlamaIndex has an XML Entity Expansion vulnerability in its sitemap parser","modified":"2026-07-13T07:26:34.494956192Z","packages":[{"ecosystem":"PyPI","name":"llama-index-readers-papers","purl":"pkg:pypi/llama-index-readers-papers","ranges":["<0.3.2"],"fixed":["0.3.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}