What is CVE-2025-7707?

CVE-2025-7707 is a high-severity vulnerability in Llamaindex, classified under Insecure Temporary File. CVSS score: 7.8/10. Published 2025-10-13.

How severe is CVE-2025-7707?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Llamaindex

CVE-2025-7707

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 N…

EPSS: 0.002 (6.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Llamaindex
Run-llama Run-llama/llama_index — versions unspecified

Weakness classification (CWE)

CWE-377 — Insecure Temporary File

References

security@huntr.dev (Exploit, Third Party Advisory)
security@huntr.dev (Patch)

Frequently asked questions

What is CVE-2025-7707?: CVE-2025-7707 is a high-severity vulnerability in Llamaindex, classified under Insecure Temporary File. CVSS score: 7.8/10. Published 2025-10-13.
How severe is CVE-2025-7707?: High severity. CVSS v3 base score is 7.8 out of 10.