{"cve":"CVE-2025-7707","nvd":{"published":"2025-10-13T17:15:35.243","modified":"2026-10-08T12:10:00.217","status":"Analyzed","description":"The llama_index library version 0.12.33 sets the NLTK data directory to a subdirectory of the codebase by default, which is world-writable in multi-user environments. This configuration allows local users to overwrite, delete, or corrupt NLTK data files, leading to potential denial of service, data tampering, or privilege escalation. The vulnerability arises from the use of a shared cache directory instead of a user-specific one, making it susceptible to local data tampering and denial of service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-377"],"references":["https://github.com/run-llama/llama_index/commit/98816394d57c7f53f847ed7b60725e69d0e7aae4","https://huntr.com/bounties/3fe2c8ab-6727-4aef-a0ef-4d2818e48803"],"products":["llamaindex:llamaindex"],"source":"nvd","synced_at":"2026-10-19T22:11:26.888974865+00:00"},"epss":{"cve":"CVE-2025-7707","score":0.00186,"percentile":0.08131,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-rg9h-vx28-xxp5","url":"https://osv.dev/vulnerability/GHSA-rg9h-vx28-xxp5","summary":"llama-index has Insecure Temporary File","modified":"2026-07-07T17:56:24.887537454Z","packages":[{"ecosystem":"PyPI","name":"llama-index","purl":"pkg:pypi/llama-index","ranges":["<0.13.0"],"fixed":["0.13.0"]}]},{"id":"PYSEC-2026-1556","url":"https://osv.dev/vulnerability/PYSEC-2026-1556","summary":"llama-index has Insecure Temporary File","modified":"2026-07-07T17:46:54.141706487Z","packages":[{"ecosystem":"PyPI","name":"llama-index","purl":"pkg:pypi/llama-index","ranges":["<0.13.0"],"fixed":["0.13.0"]}]}],"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."]}