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CVE-2025-7707

23
FAUCET Score

CVE-2025-7707 is a high-severity vulnerability (CVSS 7.8) affecting llama_index library version 0.12.33, where its default NLTK data directory is world-writable in multi-user environments. This allows local attackers to overwrite, delete, or corrupt NLTK data, potentially causing denial of service, data tampering, or privilege escalation due to a shared, rather than user-specific, cache. While the vulnerability has a high FAUCET Risk Score of 74/100, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.12.33, < 0.13.0CPE matchmatch criteria
cpe:2.3:a:llamaindex:llamaindex:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.1HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 28th percentile among its peer group of 17,070 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: llama-indexFixed in: 0.13.0

Vendor Advisories (2)

pipGHSA-rg9h-vx28-xxp5high

llama-index has Insecure Temporary File

Oct 13, 2025
redhatCVE-2025-7707Moderate

llama-index: World-Writable Cache Directory Vulnerability in llama_index

Oct 13, 2025

References

github.com / run-llama/llama_index/commit/98816394d57c7f53f847ed7b60725e69d0e7aae4
Patch
huntr.com / bounties/3fe2c8ab-6727-4aef-a0ef-4d2818e48803
ExploitThird Party Advisory